31607908057 has 8 divisors (see below), whose sum is σ = 34490650752. Its totient is φ = 28726714800.

The previous prime is 31607908051. The next prime is 31607908061. The reversal of 31607908057 is 75080970613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31607908057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31607907998 and 31607908016.

It is not an unprimeable number, because it can be changed into a prime (31607908051) 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 7 ways as a sum of consecutive naturals, for example, 344494 + ... + 426487.

It is an arithmetic number, because the mean of its divisors is an integer number (4311331344).

Almost surely, 2^31607908057 is an apocalyptic number.

It is an amenable number.

31607908057 is a deficient number, since it is larger than the sum of its proper divisors (2882742695).

31607908057 is a wasteful number, since it uses less digits than its factorization.

31607908057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774719.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 31607908057 in words is "thirty-one billion, six hundred seven million, nine hundred eight thousand, fifty-seven".