31042642944 has 88 divisors (see below), whose sum is σ = 86337547200. Its totient is φ = 9897631744.

The previous prime is 31042642907. The next prime is 31042642951. The reversal of 31042642944 is 44924624013.

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, 149019 + ... + 290330.

Almost surely, 2^31042642944 is an apocalyptic number.

It is an amenable number.

31042642944 is an abundant number, since it is smaller than the sum of its proper divisors (55294904256).

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

31042642944 is a wasteful number, since it uses less digits than its factorization.

31042642944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439395 (or 439377 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 31042642944 in words is "thirty-one billion, forty-two million, six hundred forty-two thousand, nine hundred forty-four".