680587876920 has 128 divisors (see below), whose sum is σ = 2413907827200. Its totient is φ = 150198698496.

The previous prime is 680587876919. The next prime is 680587876961. The reversal of 680587876920 is 29678785086.

It is a congruent number.

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, 13945014 + ... + 13993733.

It is an arithmetic number, because the mean of its divisors is an integer number (18858654900).

Almost surely, 2^680587876920 is an apocalyptic number.

680587876920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680587876920 is an abundant number, since it is smaller than the sum of its proper divisors (1733319950280).

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

680587876920 is a wasteful number, since it uses less digits than its factorization.

680587876920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27938797 (or 27938793 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 680587876920 in words is "six hundred eighty billion, five hundred eighty-seven million, eight hundred seventy-six thousand, nine hundred twenty".