315485655921771 has 32 divisors (see below), whose sum is σ = 452656061260800. Its totient is φ = 194821372730880.

The previous prime is 315485655921767. The next prime is 315485655921827. The reversal of 315485655921771 is 177129556584513.

It is not a de Polignac number, because 315485655921771 - 2² = 315485655921767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315485655921696 and 315485655921705.

It is not an unprimeable number, because it can be changed into a prime (315485655925771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55652920 + ... + 61059141.

It is an arithmetic number, because the mean of its divisors is an integer number (14145501914400).

Almost surely, 2^{315485655921771} is an apocalyptic number.

315485655921771 is a deficient number, since it is larger than the sum of its proper divisors (137170405339029).

315485655921771 is a wasteful number, since it uses less digits than its factorization.

315485655921771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116713139.

The product of its digits is 317520000, while the sum is 69.

The spelling of 315485655921771 in words is "three hundred fifteen trillion, four hundred eighty-five billion, six hundred fifty-five million, nine hundred twenty-one thousand, seven hundred seventy-one".