31564064042 has 16 divisors (see below), whose sum is σ = 54121394112. Its totient is φ = 13524563520.

The previous prime is 31564064023. The next prime is 31564064111. The reversal of 31564064042 is 24046046513.

It is a junction number, because it is equal to n+sod(n) for n = 31564063993 and 31564064011.

It is an unprimeable number.

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, 172559 + ... + 304802.

It is an arithmetic number, because the mean of its divisors is an integer number (3382587132).

Almost surely, 2^31564064042 is an apocalyptic number.

31564064042 is a deficient number, since it is larger than the sum of its proper divisors (22557330070).

31564064042 is a wasteful number, since it uses less digits than its factorization.

31564064042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482093.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 31564064042 in words is "thirty-one billion, five hundred sixty-four million, sixty-four thousand, forty-two".