18525682872 has 24 divisors (see below), whose sum is σ = 50173724640. Its totient is φ = 6175227600.

The previous prime is 18525682829. The next prime is 18525682919. The reversal of 18525682872 is 27828652581.

18525682872 is a `hidden beast` number, since 1 + 8 + 5 + 2 + 568 + 2 + 8 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 128650504 + ... + 128650647.

It is an arithmetic number, because the mean of its divisors is an integer number (2090571860).

Almost surely, 2^18525682872 is an apocalyptic number.

18525682872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18525682872 is an abundant number, since it is smaller than the sum of its proper divisors (31648041768).

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

18525682872 is a wasteful number, since it uses less digits than its factorization.

18525682872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257301163 (or 257301156 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The spelling of 18525682872 in words is "eighteen billion, five hundred twenty-five million, six hundred eighty-two thousand, eight hundred seventy-two".