31540724675 has 24 divisors (see below), whose sum is σ = 40106379456. Its totient is φ = 24592609440.

The previous prime is 31540724651. The next prime is 31540724693. The reversal of 31540724675 is 57642704513.

It is a happy number.

It is not a de Polignac number, because 31540724675 - 2¹⁰ = 31540723651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470612 + ... + 533438.

It is an arithmetic number, because the mean of its divisors is an integer number (1671099144).

Almost surely, 2^31540724675 is an apocalyptic number.

31540724675 is a deficient number, since it is larger than the sum of its proper divisors (8565654781).

31540724675 is a wasteful number, since it uses less digits than its factorization.

31540724675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63347 (or 63342 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 31540724675 in words is "thirty-one billion, five hundred forty million, seven hundred twenty-four thousand, six hundred seventy-five".