31934538864 has 30 divisors (see below), whose sum is σ = 89372355696. Its totient is φ = 10644846240.

The previous prime is 31934538859. The next prime is 31934538869. The reversal of 31934538864 is 46883543913.

31934538864 is a `hidden beast` number, since 3 + 19 + 34 + 538 + 8 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (31934538859) and next prime (31934538869).

It is a self number, because there is not a number n which added to its sum of digits gives 31934538864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31934538869) 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 5 ways as a sum of consecutive naturals, for example, 110883672 + ... + 110883959.

Almost surely, 2^31934538864 is an apocalyptic number.

It is an amenable number.

31934538864 is an abundant number, since it is smaller than the sum of its proper divisors (57437816832).

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

31934538864 is a wasteful number, since it uses less digits than its factorization.

31934538864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221767645 (or 221767636 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 31934538864 in words is "thirty-one billion, nine hundred thirty-four million, five hundred thirty-eight thousand, eight hundred sixty-four".