18858441108 has 96 divisors (see below), whose sum is σ = 49927158400. Its totient is φ = 5492219904.

The previous prime is 18858441097. The next prime is 18858441169. The reversal of 18858441108 is 80114485881.

It is a congruent number.

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, 4411260 + ... + 4415532.

Almost surely, 2^18858441108 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 18858441108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24963579200).

18858441108 is an abundant number, since it is smaller than the sum of its proper divisors (31068717292).

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

18858441108 is a wasteful number, since it uses less digits than its factorization.

18858441108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801 (or 5799 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 48.

The spelling of 18858441108 in words is "eighteen billion, eight hundred fifty-eight million, four hundred forty-one thousand, one hundred eight".