315219879028 has 6 divisors (see below), whose sum is σ = 551634788306. Its totient is φ = 157609939512.

The previous prime is 315219879019. The next prime is 315219879041. The reversal of 315219879028 is 820978912513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 177171962724 + 138047916304 = 420918^2 + 371548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 315219879028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39402484875 + ... + 39402484882.

Almost surely, 2^315219879028 is an apocalyptic number.

It is an amenable number.

315219879028 is a deficient number, since it is larger than the sum of its proper divisors (236414909278).

315219879028 is a wasteful number, since it uses less digits than its factorization.

315219879028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78804969761 (or 78804969759 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 315219879028 in words is "three hundred fifteen billion, two hundred nineteen million, eight hundred seventy-nine thousand, twenty-eight".