317407749685 has 24 divisors (see below), whose sum is σ = 412722375624. Its totient is φ = 234234224640.

The previous prime is 317407749563. The next prime is 317407749727. The reversal of 317407749685 is 586947704713.

It can be written as a sum of positive squares in 12 ways, for example, as 217859296516 + 99548453169 = 466754^2 + 315513^2 .

It is not a de Polignac number, because 317407749685 - 2¹⁵ = 317407716917 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1124629 + ... + 1378261.

It is an arithmetic number, because the mean of its divisors is an integer number (17196765651).

Almost surely, 2^317407749685 is an apocalyptic number.

It is an amenable number.

317407749685 is a deficient number, since it is larger than the sum of its proper divisors (95314625939).

317407749685 is a wasteful number, since it uses less digits than its factorization.

317407749685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255145 (or 255132 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 317407749685 in words is "three hundred seventeen billion, four hundred seven million, seven hundred forty-nine thousand, six hundred eighty-five".