31320078968 has 16 divisors (see below), whose sum is σ = 60619508160. Its totient is φ = 15154876800.

The previous prime is 31320078953. The next prime is 31320078991. The reversal of 31320078968 is 86987002313.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 63145073 + ... + 63145568.

It is an arithmetic number, because the mean of its divisors is an integer number (3788719260).

Almost surely, 2^31320078968 is an apocalyptic number.

It is an amenable number.

31320078968 is a deficient number, since it is larger than the sum of its proper divisors (29299429192).

31320078968 is a wasteful number, since it uses less digits than its factorization.

31320078968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126290678 (or 126290674 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 31320078968 in words is "thirty-one billion, three hundred twenty million, seventy-eight thousand, nine hundred sixty-eight".