18722841372 has 36 divisors (see below), whose sum is σ = 47332132120. Its totient is φ = 6240294432.

The previous prime is 18722841349. The next prime is 18722841443. The reversal of 18722841372 is 27314822781.

18722841372 is a `hidden beast` number, since 1 + 8 + 7 + 228 + 413 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424638 + ... + 466650.

Almost surely, 2^18722841372 is an apocalyptic number.

18722841372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18722841372 is an abundant number, since it is smaller than the sum of its proper divisors (28609290748).

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

18722841372 is a wasteful number, since it uses less digits than its factorization.

18722841372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54402 (or 54397 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The spelling of 18722841372 in words is "eighteen billion, seven hundred twenty-two million, eight hundred forty-one thousand, three hundred seventy-two".