31670734656 has 56 divisors (see below), whose sum is σ = 91413262944. Its totient is φ = 9597191680.

The previous prime is 31670734651. The next prime is 31670734657. The reversal of 31670734656 is 65643707613.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31670734651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495695 + ... + 7499918.

Almost surely, 2^31670734656 is an apocalyptic number.

It is an amenable number.

31670734656 is an abundant number, since it is smaller than the sum of its proper divisors (59742528288).

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

31670734656 is a wasteful number, since it uses less digits than its factorization.

31670734656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995639 (or 14995629 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 31670734656 in words is "thirty-one billion, six hundred seventy million, seven hundred thirty-four thousand, six hundred fifty-six".