18574144068 has 12 divisors (see below), whose sum is σ = 43339669520. Its totient is φ = 6191381352.

The previous prime is 18574144027. The next prime is 18574144091. The reversal of 18574144068 is 86044147581.

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

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, 773922658 + ... + 773922681.

Almost surely, 2^18574144068 is an apocalyptic number.

It is an amenable number.

18574144068 is an abundant number, since it is smaller than the sum of its proper divisors (24765525452).

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

18574144068 is a wasteful number, since it uses less digits than its factorization.

18574144068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547845346 (or 1547845344 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 18574144068 in words is "eighteen billion, five hundred seventy-four million, one hundred forty-four thousand, sixty-eight".