680931699504 has 120 divisors (see below), whose sum is σ = 2046675812400. Its totient is φ = 194513260032.

The previous prime is 680931699451. The next prime is 680931699523. The reversal of 680931699504 is 405996139086.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13081722 + ... + 13133670.

It is an arithmetic number, because the mean of its divisors is an integer number (17055631770).

Almost surely, 2^680931699504 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 680931699504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023337906200).

680931699504 is an abundant number, since it is smaller than the sum of its proper divisors (1365744112896).

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

680931699504 is a wasteful number, since it uses less digits than its factorization.

680931699504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57547 (or 57534 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 680931699504 in words is "six hundred eighty billion, nine hundred thirty-one million, six hundred ninety-nine thousand, five hundred four".