31725252713 has 24 divisors (see below), whose sum is σ = 40658557824. Its totient is φ = 24476172000.

The previous prime is 31725252707. The next prime is 31725252721.

31725252713 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31725252713 - 2²⁰ = 31724204137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31725252703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236945 + ... + 345822.

It is an arithmetic number, because the mean of its divisors is an integer number (1694106576).

Almost surely, 2^31725252713 is an apocalyptic number.

It is an amenable number.

31725252713 is a deficient number, since it is larger than the sum of its proper divisors (8933305111).

31725252713 is a wasteful number, since it uses less digits than its factorization.

31725252713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582893 (or 582886 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The spelling of 31725252713 in words is "thirty-one billion, seven hundred twenty-five million, two hundred fifty-two thousand, seven hundred thirteen".