18377102128 has 160 divisors (see below), whose sum is σ = 45403379712. Its totient is φ = 6997785600.

The previous prime is 18377102111. The next prime is 18377102137. The reversal of 18377102128 is 82120177381.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28142250 + ... + 28142902.

Almost surely, 2^18377102128 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 18377102128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22701689856).

18377102128 is an abundant number, since it is smaller than the sum of its proper divisors (27026277584).

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

18377102128 is a wasteful number, since it uses less digits than its factorization.

18377102128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 18377102128 in words is "eighteen billion, three hundred seventy-seven million, one hundred two thousand, one hundred twenty-eight".