31725660364523 has 16 divisors (see below), whose sum is σ = 32487434079360. Its totient is φ = 30967536923136.

The previous prime is 31725660364507. The next prime is 31725660364589. The reversal of 31725660364523 is 32546306652713.

It is a cyclic number.

It is not a de Polignac number, because 31725660364523 - 2⁴ = 31725660364507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31725660361523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83565215 + ... + 83944007.

It is an arithmetic number, because the mean of its divisors is an integer number (2030464629960).

Almost surely, 2^{31725660364523} is an apocalyptic number.

31725660364523 is a deficient number, since it is larger than the sum of its proper divisors (761773714837).

31725660364523 is a wasteful number, since it uses less digits than its factorization.

31725660364523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383606.

The product of its (nonzero) digits is 16329600, while the sum is 53.

The spelling of 31725660364523 in words is "thirty-one trillion, seven hundred twenty-five billion, six hundred sixty million, three hundred sixty-four thousand, five hundred twenty-three".