18888789876 has 48 divisors (see below), whose sum is σ = 48097748160. Its totient is φ = 5721829120.

The previous prime is 18888789863. The next prime is 18888789877. The reversal of 18888789876 is 67898788881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18888789877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367810 + ... + 416006.

It is an arithmetic number, because the mean of its divisors is an integer number (1002036420).

Almost surely, 2^18888789876 is an apocalyptic number.

It is an amenable number.

18888789876 is an abundant number, since it is smaller than the sum of its proper divisors (29208958284).

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

18888789876 is a wasteful number, since it uses less digits than its factorization.

18888789876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51184 (or 51182 counting only the distinct ones).

The product of its digits is 693633024, while the sum is 78.

The spelling of 18888789876 in words is "eighteen billion, eight hundred eighty-eight million, seven hundred eighty-nine thousand, eight hundred seventy-six".