18300315186 has 12 divisors (see below), whose sum is σ = 39650682942. Its totient is φ = 6100105056.

The previous prime is 18300315149. The next prime is 18300315199. The reversal of 18300315186 is 68151300381.

It can be written as a sum of positive squares in only one way, i.e., 11230700625 + 7069614561 = 105975^2 + 84081^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18300315186.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 508342071 + ... + 508342106.

Almost surely, 2^18300315186 is an apocalyptic number.

18300315186 is an abundant number, since it is smaller than the sum of its proper divisors (21350367756).

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

18300315186 is a wasteful number, since it uses less digits than its factorization.

18300315186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016684185 (or 1016684182 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 18300315186 in words is "eighteen billion, three hundred million, three hundred fifteen thousand, one hundred eighty-six".