31731423868576 has 24 divisors (see below), whose sum is σ = 62471548599264. Its totient is φ = 15865633748160.

The previous prime is 31731423868541. The next prime is 31731423868601. The reversal of 31731423868576 is 67586832413713.

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 3 ways as a sum of consecutive naturals, for example, 4450941 + ... + 9125443.

It is an arithmetic number, because the mean of its divisors is an integer number (2602981191636).

Almost surely, 2^{31731423868576} is an apocalyptic number.

It is an amenable number.

31731423868576 is a deficient number, since it is larger than the sum of its proper divisors (30740124730688).

31731423868576 is a wasteful number, since it uses less digits than its factorization.

31731423868576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886644 (or 4886636 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 64.

The spelling of 31731423868576 in words is "thirty-one trillion, seven hundred thirty-one billion, four hundred twenty-three million, eight hundred sixty-eight thousand, five hundred seventy-six".