18702750564 has 81 divisors (see below), whose sum is σ = 49471182579. Its totient is φ = 5957178480.

The previous prime is 18702750559. The next prime is 18702750589. The reversal of 18702750564 is 46505720781.

The square root of 18702750564 is 136758.

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

18702750564 is a `hidden beast` number, since 1 + 87 + 0 + 2 + 7 + 5 + 0 + 564 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18872109 + ... + 18873099.

Almost surely, 2^18702750564 is an apocalyptic number.

18702750564 is the 136758-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18702750564

18702750564 is an abundant number, since it is smaller than the sum of its proper divisors (30768432015).

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

18702750564 is an equidigital number, since it uses as much as digits as its factorization.

18702750564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 18702750564 in words is "eighteen billion, seven hundred two million, seven hundred fifty thousand, five hundred sixty-four".