31642342564 has 12 divisors (see below), whose sum is σ = 63284685184. Its totient is φ = 13561003944.

The previous prime is 31642342561. The next prime is 31642342579. The reversal of 31642342564 is 46524324613.

31642342564 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31642342561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565041804 + ... + 565041859.

Almost surely, 2^31642342564 is an apocalyptic number.

It is an amenable number.

31642342564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31642342564 is a wasteful number, since it uses less digits than its factorization.

31642342564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130083674 (or 1130083672 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The spelling of 31642342564 in words is "thirty-one billion, six hundred forty-two million, three hundred forty-two thousand, five hundred sixty-four".