68631738970 has 8 divisors (see below), whose sum is σ = 123537130164. Its totient is φ = 27452695584.

The previous prime is 68631738961. The next prime is 68631738983. The reversal of 68631738970 is 7983713686.

It can be written as a sum of positive squares in 2 ways, for example, as 56680657929 + 11951081041 = 238077^2 + 109321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431586939 + ... + 3431586958.

Almost surely, 2^68631738970 is an apocalyptic number.

68631738970 is a deficient number, since it is larger than the sum of its proper divisors (54905391194).

68631738970 is a wasteful number, since it uses less digits than its factorization.

68631738970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863173904.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 68631738970 in words is "sixty-eight billion, six hundred thirty-one million, seven hundred thirty-eight thousand, nine hundred seventy".