315915810249 has 48 divisors (see below), whose sum is σ = 470514807744. Its totient is φ = 188367379200.

The previous prime is 315915810229. The next prime is 315915810289. The reversal of 315915810249 is 942018519513.

It is not a de Polignac number, because 315915810249 - 2⁷ = 315915810121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315915810198 and 315915810207.

It is not an unprimeable number, because it can be changed into a prime (315915810229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1995879 + ... + 2148339.

It is an arithmetic number, because the mean of its divisors is an integer number (9802391828).

Almost surely, 2^315915810249 is an apocalyptic number.

315915810249 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

315915810249 is a deficient number, since it is larger than the sum of its proper divisors (154598997495).

315915810249 is a wasteful number, since it uses less digits than its factorization.

315915810249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152618 (or 152605 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 315915810249 in words is "three hundred fifteen billion, nine hundred fifteen million, eight hundred ten thousand, two hundred forty-nine".