68932637956 has 24 divisors (see below), whose sum is σ = 148470297920. Its totient is φ = 27270054432.

The previous prime is 68932637951. The next prime is 68932637957. The reversal of 68932637956 is 65973623986.

It is not an unprimeable number, because it can be changed into a prime (68932637951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94687326 + ... + 94688053.

Almost surely, 2^68932637956 is an apocalyptic number.

It is an amenable number.

68932637956 is an abundant number, since it is smaller than the sum of its proper divisors (79537659964).

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

68932637956 is a wasteful number, since it uses less digits than its factorization.

68932637956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189375403 (or 189375401 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 64.

The spelling of 68932637956 in words is "sixty-eight billion, nine hundred thirty-two million, six hundred thirty-seven thousand, nine hundred fifty-six".