315787890531 has 8 divisors (see below), whose sum is σ = 423254974464. Its totient is φ = 209423033480.

The previous prime is 315787890503. The next prime is 315787890547. The reversal of 315787890531 is 135098787513.

315787890531 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315787890531 - 2¹⁰ = 315787889507 is a prime.

It is a super-2 number, since 2×315787890531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315787890571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275556051 + ... + 275557196.

It is an arithmetic number, because the mean of its divisors is an integer number (52906871808).

Almost surely, 2^315787890531 is an apocalyptic number.

315787890531 is a deficient number, since it is larger than the sum of its proper divisors (107467083933).

315787890531 is a wasteful number, since it uses less digits than its factorization.

315787890531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551113441.

The product of its (nonzero) digits is 6350400, while the sum is 57.

The spelling of 315787890531 in words is "three hundred fifteen billion, seven hundred eighty-seven million, eight hundred ninety thousand, five hundred thirty-one".