31347386345 has 16 divisors (see below), whose sum is σ = 41273796672. Its totient is φ = 22666311360.

The previous prime is 31347386327. The next prime is 31347386393. The reversal of 31347386345 is 54368374313.

It is not a de Polignac number, because 31347386345 - 2⁸ = 31347386089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31347386345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1637747 + ... + 1656776.

It is an arithmetic number, because the mean of its divisors is an integer number (2579612292).

Almost surely, 2^31347386345 is an apocalyptic number.

It is an amenable number.

31347386345 is a deficient number, since it is larger than the sum of its proper divisors (9926410327).

31347386345 is a wasteful number, since it uses less digits than its factorization.

31347386345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294712.

The product of its digits is 2177280, while the sum is 47.

The spelling of 31347386345 in words is "thirty-one billion, three hundred forty-seven million, three hundred eighty-six thousand, three hundred forty-five".