31804316613 has 12 divisors (see below), whose sum is σ = 45952522720. Its totient is φ = 21196898856.

The previous prime is 31804316569. The next prime is 31804316627. The reversal of 31804316613 is 31661340813.

31804316613 is a `hidden beast` number, since 3 + 1 + 8 + 0 + 4 + 31 + 6 + 613 = 666.

It is not a de Polignac number, because 31804316613 - 2¹⁷ = 31804185541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31804316693) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 464431 + ... + 528492.

Almost surely, 2^31804316613 is an apocalyptic number.

It is an amenable number.

31804316613 is a deficient number, since it is larger than the sum of its proper divisors (14148206107).

31804316613 is a wasteful number, since it uses less digits than its factorization.

31804316613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996488 (or 996485 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 31804316613 in words is "thirty-one billion, eight hundred four million, three hundred sixteen thousand, six hundred thirteen".