18876487605264 has 45 divisors (see below), whose sum is σ = 52828093861023. Its totient is φ = 6292145156256.

The previous prime is 18876487605257. The next prime is 18876487605299. The reversal of 18876487605264 is 46250678467881.

The square root of 18876487605264 is 4344708.

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

18876487605264 is a `hidden beast` number, since 1 + 8 + 8 + 7 + 6 + 4 + 8 + 7 + 605 + 2 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 18876487605192 and 18876487605201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51955467 + ... + 52317525.

Almost surely, 2^{18876487605264} is an apocalyptic number.

18876487605264 is the 4344708-th square number.

It is an amenable number.

18876487605264 is an abundant number, since it is smaller than the sum of its proper divisors (33951606255759).

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

18876487605264 is an frugal number, since it uses more digits than its factorization.

18876487605264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724132 (or 362064 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 72.

The spelling of 18876487605264 in words is "eighteen trillion, eight hundred seventy-six billion, four hundred eighty-seven million, six hundred five thousand, two hundred sixty-four".