18313906275625 has 15 divisors (see below), whose sum is σ = 22885190973601. Its totient is φ = 14651039431000.

The previous prime is 18313906275583. The next prime is 18313906275689. The reversal of 18313906275625 is 52657260931381.

The square root of 18313906275625 is 4279475.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 1435810252009 + 16878096023616 = 1198253^2 + 4108296^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18313906275625 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18313906275625.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 106901286 + ... + 107072464.

Almost surely, 2^{18313906275625} is an apocalyptic number.

18313906275625 is the 4279475-th square number.

18313906275625 is the 2139738-th centered octagonal number.

It is an amenable number.

18313906275625 is a deficient number, since it is larger than the sum of its proper divisors (4571284697976).

18313906275625 is an frugal number, since it uses more digits than its factorization.

18313906275625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342378 (or 171184 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 18313906275625 in words is "eighteen trillion, three hundred thirteen billion, nine hundred six million, two hundred seventy-five thousand, six hundred twenty-five".