31214564516 has 24 divisors (see below), whose sum is σ = 57021189120. Its totient is φ = 14934110400.

The previous prime is 31214564509. The next prime is 31214564527. The reversal of 31214564516 is 61546541213.

It is a self number, because there is not a number n which added to its sum of digits gives 31214564516.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403180 + ... + 1425251.

It is an arithmetic number, because the mean of its divisors is an integer number (2375882880).

Almost surely, 2^31214564516 is an apocalyptic number.

It is an amenable number.

31214564516 is a deficient number, since it is larger than the sum of its proper divisors (25806624604).

31214564516 is a wasteful number, since it uses less digits than its factorization.

31214564516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828555 (or 2828553 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The spelling of 31214564516 in words is "thirty-one billion, two hundred fourteen million, five hundred sixty-four thousand, five hundred sixteen".