31407873057 has 12 divisors (see below), whose sum is σ = 49491194064. Its totient is φ = 19035074520.

The previous prime is 31407873041. The next prime is 31407873059. The reversal of 31407873057 is 75037870413.

It is not a de Polignac number, because 31407873057 - 2⁴ = 31407873041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31407873059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158625523 + ... + 158625720.

It is an arithmetic number, because the mean of its divisors is an integer number (4124266172).

Almost surely, 2^31407873057 is an apocalyptic number.

It is an amenable number.

31407873057 is a deficient number, since it is larger than the sum of its proper divisors (18083321007).

31407873057 is a wasteful number, since it uses less digits than its factorization.

31407873057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317251260 (or 317251257 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 31407873057 in words is "thirty-one billion, four hundred seven million, eight hundred seventy-three thousand, fifty-seven".