315481531621834 has 32 divisors (see below), whose sum is σ = 474886792515600. Its totient is φ = 157186992752640.

The previous prime is 315481531621787. The next prime is 315481531621877. The reversal of 315481531621834 is 438126135184513.

It can be written as a sum of positive squares in 8 ways, for example, as 212201771719609 + 103279759902225 = 14567147^2 + 10162665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3452783302 + ... + 3452874670.

Almost surely, 2^{315481531621834} is an apocalyptic number.

315481531621834 is a deficient number, since it is larger than the sum of its proper divisors (159405260893766).

315481531621834 is a wasteful number, since it uses less digits than its factorization.

315481531621834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97098.

The product of its digits is 8294400, while the sum is 55.

The spelling of 315481531621834 in words is "three hundred fifteen trillion, four hundred eighty-one billion, five hundred thirty-one million, six hundred twenty-one thousand, eight hundred thirty-four".