315242193152 has 18 divisors (see below), whose sum is σ = 629252971998. Its totient is φ = 157621096448.

The previous prime is 315242193131. The next prime is 315242193169. The reversal of 315242193152 is 251391242513.

It can be written as a sum of positive squares in only one way, i.e., 309242761216 + 5999431936 = 556096^2 + 77456^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615707153 + ... + 615707664.

Almost surely, 2^315242193152 is an apocalyptic number.

315242193152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

315242193152 is a deficient number, since it is larger than the sum of its proper divisors (314010778846).

315242193152 is an equidigital number, since it uses as much as digits as its factorization.

315242193152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231414833 (or 1231414819 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The spelling of 315242193152 in words is "three hundred fifteen billion, two hundred forty-two million, one hundred ninety-three thousand, one hundred fifty-two".