68685363936 has 120 divisors (see below), whose sum is σ = 230859200880. Its totient is φ = 19624384512.

The previous prime is 68685363881. The next prime is 68685363941. The reversal of 68685363936 is 63936358686.

68685363936 is a `hidden beast` number, since 6 + 8 + 6 + 8 + 536 + 3 + 93 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1874641 + ... + 1910928.

It is an arithmetic number, because the mean of its divisors is an integer number (1923826674).

Almost surely, 2^68685363936 is an apocalyptic number.

It is an amenable number.

68685363936 is an abundant number, since it is smaller than the sum of its proper divisors (162173836944).

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

68685363936 is a wasteful number, since it uses less digits than its factorization.

68685363936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785598 (or 3785581 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 63.

The spelling of 68685363936 in words is "sixty-eight billion, six hundred eighty-five million, three hundred sixty-three thousand, nine hundred thirty-six".