315805765412 has 12 divisors (see below), whose sum is σ = 552675385500. Its totient is φ = 157898512416.

The previous prime is 315805765411. The next prime is 315805765433. The reversal of 315805765412 is 214567508513.

It can be written as a sum of positive squares in 2 ways, for example, as 139266297856 + 176539467556 = 373184^2 + 420166^2 .

It is not an unprimeable number, because it can be changed into a prime (315805765411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927203 + ... + 1221194.

It is an arithmetic number, because the mean of its divisors is an integer number (46056282125).

Almost surely, 2^315805765412 is an apocalyptic number.

It is an amenable number.

315805765412 is a deficient number, since it is larger than the sum of its proper divisors (236869620088).

315805765412 is a wasteful number, since it uses less digits than its factorization.

315805765412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185150 (or 2185148 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 315805765412 in words is "three hundred fifteen billion, eight hundred five million, seven hundred sixty-five thousand, four hundred twelve".