315814256639 has 32 divisors (see below), whose sum is σ = 388032960000. Its totient is φ = 256217556672.

The previous prime is 315814256633. The next prime is 315814256647. The reversal of 315814256639 is 936652418513.

It is not a de Polignac number, because 315814256639 - 2²⁸ = 315545821183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315814256633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7336232 + ... + 7379154.

It is an arithmetic number, because the mean of its divisors is an integer number (12126030000).

Almost surely, 2^315814256639 is an apocalyptic number.

315814256639 is a deficient number, since it is larger than the sum of its proper divisors (72218703361).

315814256639 is a wasteful number, since it uses less digits than its factorization.

315814256639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44092 (or 44078 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The spelling of 315814256639 in words is "three hundred fifteen billion, eight hundred fourteen million, two hundred fifty-six thousand, six hundred thirty-nine".