18901092372 has 12 divisors (see below), whose sum is σ = 44102548896. Its totient is φ = 6300364120.

The previous prime is 18901092359. The next prime is 18901092389. The reversal of 18901092372 is 27329010981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787545504 + ... + 787545527.

It is an arithmetic number, because the mean of its divisors is an integer number (3675212408).

Almost surely, 2^18901092372 is an apocalyptic number.

18901092372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18901092372 is an abundant number, since it is smaller than the sum of its proper divisors (25201456524).

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

18901092372 is a wasteful number, since it uses less digits than its factorization.

18901092372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575091038 (or 1575091036 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 18901092372 in words is "eighteen billion, nine hundred one million, ninety-two thousand, three hundred seventy-two".