18758770368 has 56 divisors (see below), whose sum is σ = 53450477808. Its totient is φ = 5771928576.

The previous prime is 18758770337. The next prime is 18758770391. The reversal of 18758770368 is 86307785781.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755271 + ... + 3760262.

It is an arithmetic number, because the mean of its divisors is an integer number (954472818).

Almost surely, 2^18758770368 is an apocalyptic number.

It is an amenable number.

18758770368 is an abundant number, since it is smaller than the sum of its proper divisors (34691707440).

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

18758770368 is a wasteful number, since it uses less digits than its factorization.

18758770368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7515561 (or 7515551 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 60.

The spelling of 18758770368 in words is "eighteen billion, seven hundred fifty-eight million, seven hundred seventy thousand, three hundred sixty-eight".