31322409985 has 32 divisors (see below), whose sum is σ = 40851993600. Its totient is φ = 22964401152.

The previous prime is 31322409961. The next prime is 31322410039. The reversal of 31322409985 is 58990422313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31322409985 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 767116 + ... + 806914.

It is an arithmetic number, because the mean of its divisors is an integer number (1276624800).

Almost surely, 2^31322409985 is an apocalyptic number.

It is an amenable number.

31322409985 is a deficient number, since it is larger than the sum of its proper divisors (9529583615).

31322409985 is a wasteful number, since it uses less digits than its factorization.

31322409985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40065.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 31322409985 in words is "thirty-one billion, three hundred twenty-two million, four hundred nine thousand, nine hundred eighty-five".