680957620620 has 48 divisors (see below), whose sum is σ = 1907629801728. Its totient is φ = 181498368960.

The previous prime is 680957620547. The next prime is 680957620639. The reversal of 680957620620 is 26026759086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2701144 + ... + 2942463.

It is an arithmetic number, because the mean of its divisors is an integer number (39742287536).

Almost surely, 2^680957620620 is an apocalyptic number.

680957620620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680957620620 is an abundant number, since it is smaller than the sum of its proper divisors (1226672181108).

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

680957620620 is a wasteful number, since it uses less digits than its factorization.

680957620620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645630 (or 5645628 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 680957620620 in words is "six hundred eighty billion, nine hundred fifty-seven million, six hundred twenty thousand, six hundred twenty".