680891550308 has 24 divisors (see below), whose sum is σ = 1192938516000. Its totient is φ = 340052159168.

The previous prime is 680891550293. The next prime is 680891550341. The reversal of 680891550308 is 803055198086.

It is a super-2 number, since 2×680891550308² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680891550308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16355063 + ... + 16396641.

It is an arithmetic number, because the mean of its divisors is an integer number (49705771500).

Almost surely, 2^680891550308 is an apocalyptic number.

It is an amenable number.

680891550308 is a deficient number, since it is larger than the sum of its proper divisors (512046965692).

680891550308 is a wasteful number, since it uses less digits than its factorization.

680891550308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46219 (or 46217 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 53.

The spelling of 680891550308 in words is "six hundred eighty billion, eight hundred ninety-one million, five hundred fifty thousand, three hundred eight".