18877677888 has 112 divisors (see below), whose sum is σ = 51360019200. Its totient is φ = 6115737600.

The previous prime is 18877677857. The next prime is 18877677893. The reversal of 18877677888 is 88877677881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2128888 + ... + 2137736.

It is an arithmetic number, because the mean of its divisors is an integer number (458571600).

Almost surely, 2^18877677888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18877677888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25680009600).

18877677888 is an abundant number, since it is smaller than the sum of its proper divisors (32482341312).

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

18877677888 is a wasteful number, since it uses less digits than its factorization.

18877677888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176 (or 9166 counting only the distinct ones).

The product of its digits is 472055808, while the sum is 75.

The spelling of 18877677888 in words is "eighteen billion, eight hundred seventy-seven million, six hundred seventy-seven thousand, eight hundred eighty-eight".