31977095964 has 48 divisors (see below), whose sum is σ = 81428530176. Its totient is φ = 9686185600.

The previous prime is 31977095933. The next prime is 31977096001. The reversal of 31977095964 is 46959077913.

It is a junction number, because it is equal to n+sod(n) for n = 31977095898 and 31977095907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295264 + ... + 388760.

It is an arithmetic number, because the mean of its divisors is an integer number (1696427712).

Almost surely, 2^31977095964 is an apocalyptic number.

It is an amenable number.

31977095964 is an abundant number, since it is smaller than the sum of its proper divisors (49451434212).

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

31977095964 is a wasteful number, since it uses less digits than its factorization.

31977095964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96106 (or 96104 counting only the distinct ones).

The product of its (nonzero) digits is 12859560, while the sum is 60.

The spelling of 31977095964 in words is "thirty-one billion, nine hundred seventy-seven million, ninety-five thousand, nine hundred sixty-four".