315256432345 has 32 divisors (see below), whose sum is σ = 389948700960. Its totient is φ = 244591902720.

The previous prime is 315256432331. The next prime is 315256432471. The reversal of 315256432345 is 543234652513.

It can be written as a sum of positive squares in 16 ways, for example, as 104108830281 + 211147602064 = 322659^2 + 459508^2 .

It is not a de Polignac number, because 315256432345 - 2²⁵ = 315222877913 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 5852977 + ... + 5906593.

It is an arithmetic number, because the mean of its divisors is an integer number (12185896905).

Almost surely, 2^315256432345 is an apocalyptic number.

It is an amenable number.

315256432345 is a deficient number, since it is larger than the sum of its proper divisors (74692268615).

315256432345 is a wasteful number, since it uses less digits than its factorization.

315256432345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53965.

The product of its digits is 1296000, while the sum is 43.

The spelling of 315256432345 in words is "three hundred fifteen billion, two hundred fifty-six million, four hundred thirty-two thousand, three hundred forty-five".