681523058368 has 56 divisors (see below), whose sum is σ = 1363074134400. Its totient is φ = 338074257408.

The previous prime is 681523058347. The next prime is 681523058371. The reversal of 681523058368 is 863850325186.

681523058368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15400818 + ... + 15445006.

Almost surely, 2^681523058368 is an apocalyptic number.

It is an amenable number.

681523058368 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

681523058368 is a wasteful number, since it uses less digits than its factorization.

681523058368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46097 (or 46087 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 681523058368 in words is "six hundred eighty-one billion, five hundred twenty-three million, fifty-eight thousand, three hundred sixty-eight".