68677396956 has 72 divisors (see below), whose sum is σ = 198434396160. Its totient is φ = 19618847136.

The previous prime is 68677396939. The next prime is 68677396961. The reversal of 68677396956 is 65969377686.

68677396956 is a `hidden beast` number, since 6 + 86 + 77 + 396 + 95 + 6 = 666.

It is a congruent number.

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, 1776885 + ... + 1815123.

It is an arithmetic number, because the mean of its divisors is an integer number (2756033280).

Almost surely, 2^68677396956 is an apocalyptic number.

It is an amenable number.

68677396956 is an abundant number, since it is smaller than the sum of its proper divisors (129756999204).

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

68677396956 is a wasteful number, since it uses less digits than its factorization.

68677396956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45383 (or 45378 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 72.

The spelling of 68677396956 in words is "sixty-eight billion, six hundred seventy-seven million, three hundred ninety-six thousand, nine hundred fifty-six".