18657884167048 has 128 divisors (see below), whose sum is σ = 40362648480000. Its totient is φ = 7920410065920.

The previous prime is 18657884166919. The next prime is 18657884167057. The reversal of 18657884167048 is 84076148875681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2063236015 + ... + 2063245057.

It is an arithmetic number, because the mean of its divisors is an integer number (315333191250).

Almost surely, 2^{18657884167048} is an apocalyptic number.

It is an amenable number.

18657884167048 is an abundant number, since it is smaller than the sum of its proper divisors (21704764312952).

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

18657884167048 is a wasteful number, since it uses less digits than its factorization.

18657884167048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095 (or 10091 counting only the distinct ones).

The product of its (nonzero) digits is 578027520, while the sum is 73.

The spelling of 18657884167048 in words is "eighteen trillion, six hundred fifty-seven billion, eight hundred eighty-four million, one hundred sixty-seven thousand, forty-eight".