31664406948 has 24 divisors (see below), whose sum is σ = 73888395840. Its totient is φ = 10554119520.

The previous prime is 31664406931. The next prime is 31664406967. The reversal of 31664406948 is 84960446613.

It is a self number, because there is not a number n which added to its sum of digits gives 31664406948.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129513 + ... + 283023.

It is an arithmetic number, because the mean of its divisors is an integer number (3078683160).

Almost surely, 2^31664406948 is an apocalyptic number.

It is an amenable number.

31664406948 is an abundant number, since it is smaller than the sum of its proper divisors (42223988892).

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

31664406948 is a wasteful number, since it uses less digits than its factorization.

31664406948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170707 (or 170705 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 31664406948 in words is "thirty-one billion, six hundred sixty-four million, four hundred six thousand, nine hundred forty-eight".