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687627416471104 = 26315311035928709
BaseRepresentation
bin1001110001011001001011101…
…1111001011000011001000000
310100011200112112221111021012101
42130112102323321120121000
51210112041422104033404
610434243401343040144
7264560304254564464
oct23426227371303100
93304615487437171
10687627416471104
1118a1101712084aa
12651569725a0054
132368bcaa992c15
14c1b34b75924a4
155476b790722a4
hex27164bbe58640

687627416471104 has 112 divisors (see below), whose sum is σ = 1436404443863040. Its totient is φ = 326149135902720.

The previous prime is 687627416471077. The next prime is 687627416471111. The reversal of 687627416471104 is 401174614726786.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113018302 + ... + 118947010.

Almost surely, 2687627416471104 is an apocalyptic number.

687627416471104 is a gapful number since it is divisible by the number (64) 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 687627416471104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718202221931520).

687627416471104 is an abundant number, since it is smaller than the sum of its proper divisors (748777027391936).

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

687627416471104 is a wasteful number, since it uses less digits than its factorization.

687627416471104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929908 (or 5929898 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 64.

The spelling of 687627416471104 in words is "six hundred eighty-seven trillion, six hundred twenty-seven billion, four hundred sixteen million, four hundred seventy-one thousand, one hundred four".

Divisors: 1 2 4 8 16 31 32 53 62 64 106 124 212 248 424 496 848 992 1103 1643 1696 1984 2206 3286 3392 4412 6572 8824 13144 17648 26288 34193 35296 52576 58459 68386 70592 105152 116918 136772 233836 273544 467672 547088 935344 1094176 1812229 1870688 2188352 3624458 3741376 5928709 7248916 11857418 14497832 23714836 28995664 47429672 57991328 94859344 115982656 183789979 189718688 314221577 367579958 379437376 628443154 735159916 1256886308 1470319832 2513772616 2940639664 5027545232 5881279328 6539366027 9740868887 10055090464 11762558656 13078732054 19481737774 20110180928 26157464108 38963475548 52314928216 77926951096 104629856432 155853902192 202720346837 209259712864 311707804384 346586399431 405440693674 418519425728 623415608768 693172798862 810881387348 1386345597724 1621762774696 2772691195448 3243525549392 5545382390896 6487051098784 10744178382361 11090764781792 12974102197568 21488356764722 22181529563584 42976713529444 85953427058888 171906854117776 343813708235552 687627416471104