31640705675 has 24 divisors (see below), whose sum is σ = 40604603520. Its totient is φ = 24432825600.

The previous prime is 31640705669. The next prime is 31640705699. The reversal of 31640705675 is 57650704613.

It is not a de Polignac number, because 31640705675 - 2¹² = 31640701579 is a prime.

It is a super-2 number, since 2×31640705675² (a number of 22 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 248999 + ... + 353951.

It is an arithmetic number, because the mean of its divisors is an integer number (1691858480).

Almost surely, 2^31640705675 is an apocalyptic number.

31640705675 is a deficient number, since it is larger than the sum of its proper divisors (8963897845).

31640705675 is a wasteful number, since it uses less digits than its factorization.

31640705675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105383 (or 105378 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 31640705675 in words is "thirty-one billion, six hundred forty million, seven hundred five thousand, six hundred seventy-five".