315628347220 has 24 divisors (see below), whose sum is σ = 662874597000. Its totient is φ = 126240849792.

The previous prime is 315628347217. The next prime is 315628347233. The reversal of 315628347220 is 22743826513.

It can be written as a sum of positive squares in 4 ways, for example, as 145737643536 + 169890703684 = 381756^2 + 412178^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406515 + ... + 892474.

It is an arithmetic number, because the mean of its divisors is an integer number (27619774875).

Almost surely, 2^315628347220 is an apocalyptic number.

It is an amenable number.

315628347220 is an abundant number, since it is smaller than the sum of its proper divisors (347246249780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315628347220 is a wasteful number, since it uses less digits than its factorization.

315628347220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311147 (or 1311145 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 315628347220 in words is "three hundred fifteen billion, six hundred twenty-eight million, three hundred forty-seven thousand, two hundred twenty".