31402079964 has 36 divisors (see below), whose sum is σ = 79392689376. Its totient is φ = 10465354368.

The previous prime is 31402079939. The next prime is 31402079977. The reversal of 31402079964 is 46997020413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113277 + ... + 275019.

Almost surely, 2^31402079964 is an apocalyptic number.

It is an amenable number.

31402079964 is an abundant number, since it is smaller than the sum of its proper divisors (47990609412).

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

31402079964 is a wasteful number, since it uses less digits than its factorization.

31402079964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167146 (or 167141 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 31402079964 in words is "thirty-one billion, four hundred two million, seventy-nine thousand, nine hundred sixty-four".