18852937636 has 27 divisors (see below), whose sum is σ = 35732525283. Its totient is φ = 8699708160.

The previous prime is 18852937601. The next prime is 18852937681. The reversal of 18852937636 is 63673925881.

The square root of 18852937636 is 137306.

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

It can be written as a sum of positive squares in 4 ways, for example, as 9779232100 + 9073705536 = 98890^2 + 95256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3567316 + ... + 3572596.

Almost surely, 2^18852937636 is an apocalyptic number.

18852937636 is the 137306-th square number.

It is an amenable number.

18852937636 is a deficient number, since it is larger than the sum of its proper divisors (16879587647).

18852937636 is an frugal number, since it uses more digits than its factorization.

18852937636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10592 (or 5296 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The spelling of 18852937636 in words is "eighteen billion, eight hundred fifty-two million, nine hundred thirty-seven thousand, six hundred thirty-six".