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468449787944864 = 251122917443239171
BaseRepresentation
bin110101010000011010111011…
…1001101001001111110100000
32021102122100210011102001122002
41222200311313031021332200
5442400040131203213424
64340150510042103132
7200446244305350455
oct15240656715117640
92242570704361562
10468449787944864
1112629849191a200
124465885a1aaaa8
131715081918301b
14839713acb382c
1539256c2498cae
hex1aa0d77349fa0

468449787944864 has 144 divisors (see below), whose sum is σ = 1048744891424160. Its totient is φ = 205576602739200.

The previous prime is 468449787944863. The next prime is 468449787944869.

468449787944864 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (468449787944863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1958519999 + ... + 1958759169.

It is an arithmetic number, because the mean of its divisors is an integer number (7282950634890).

Almost surely, 2468449787944864 is an apocalyptic number.

468449787944864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 468449787944864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524372445712080).

468449787944864 is an abundant number, since it is smaller than the sum of its proper divisors (580295103479296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

468449787944864 is a wasteful number, since it uses less digits than its factorization.

468449787944864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256675 (or 256656 counting only the distinct ones).

The product of its digits is 299649466368, while the sum is 92.

The spelling of 468449787944864 in words is "four hundred sixty-eight trillion, four hundred forty-nine billion, seven hundred eighty-seven million, nine hundred forty-four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 11 16 22 29 32 44 58 88 116 121 176 232 242 319 352 464 484 638 928 968 1276 1936 2552 3509 3872 5104 7018 10208 14036 17443 28072 34886 56144 69772 112288 139544 191873 239171 279088 383746 478342 505847 558176 767492 956684 1011694 1534984 1913368 2023388 2110603 2630881 3069968 3826736 4046776 4221206 5261762 5564317 6139936 6935959 7653472 8093552 8442412 10523524 11128634 13871918 16187104 16884824 21047048 22257268 27743836 28939691 33769648 42094096 44514536 55487672 57879382 61207487 67539296 76295549 84188192 89029072 110975344 115758764 122414974 152591098 178058144 221950688 231517528 244829948 305182196 463035056 489659896 610364392 839251039 926070112 979319792 1220728784 1678502078 1958639584 2441457568 3357004156 4171859753 6714008312 8343719506 13428016624 16687439012 26856033248 33374878024 45890457283 66749756048 91780914566 120983932837 133499512096 183561829132 241967865674 367123658264 483935731348 504795030113 734247316528 967871462696 1009590060226 1330823261207 1468494633056 1935742925392 2019180120452 2661646522414 3871485850784 4038360240904 5323293044828 8076720481808 10646586089656 14639055873277 16153440963616 21293172179312 29278111746554 42586344358624 58556223493108 117112446986216 234224893972432 468449787944864