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864768828867468 = 223797920311532397
BaseRepresentation
bin1100010010100000001010111…
…0110110111000001110001100
311012101220002111112202120222120
43010220002232312320032030
51401321333030142224333
612303113152101212540
7350102325510355260
oct30450025666701614
94171802445676876
10864768828867468
112305a64454674a8
1280ba5bab101150
132b16b4734cc155
141137906b0ac0a0
1569e994d74adb3
hex31280aedb838c

864768828867468 has 96 divisors (see below), whose sum is σ = 2330077285046784. Its totient is φ = 244503032813568.

The previous prime is 864768828867451. The next prime is 864768828867499.

864768828867468 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8647688288674682 (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69219846 + ... + 80752242.

It is an arithmetic number, because the mean of its divisors is an integer number (24271638385904).

Almost surely, 2864768828867468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864768828867468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165038642523392).

864768828867468 is an abundant number, since it is smaller than the sum of its proper divisors (1465308456179316).

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

864768828867468 is a wasteful number, since it uses less digits than its factorization.

864768828867468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11541711 (or 11541709 counting only the distinct ones).

The product of its digits is 532710162432, while the sum is 96.

The spelling of 864768828867468 in words is "eight hundred sixty-four trillion, seven hundred sixty-eight billion, eight hundred twenty-eight million, eight hundred sixty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 97 194 291 388 582 679 1164 1358 2037 2716 4074 8148 9203 18406 27609 36812 55218 64421 110436 128842 193263 257684 386526 773052 892691 1785382 2678073 3570764 5356146 6248837 10712292 11532397 12497674 18746511 23064794 24995348 34597191 37493022 46129588 69194382 74986044 80726779 138388764 161453558 242180337 322907116 484360674 968721348 1118642509 2237285018 3355927527 4474570036 6711855054 7830497563 13423710108 15660995126 23491492689 31321990252 46982985378 93965970756 106132649591 212265299182 318397948773 424530598364 636795897546 742928547137 1273591795092 1485857094274 2228785641411 2971714188548 4457571282822 8915142565644 10294867010327 20589734020654 30884601030981 41179468041308 61769202061962 72064069072289 123538404123924 144128138144578 216192207216867 288256276289156 432384414433734 864768828867468