18850404608 has 144 divisors (see below), whose sum is σ = 45924264960. Its totient is φ = 7547904000.

The previous prime is 18850404581. The next prime is 18850404619. The reversal of 18850404608 is 80640405881.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605158 + ... + 1616858.

Almost surely, 2^18850404608 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 18850404608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22962132480).

18850404608 is an abundant number, since it is smaller than the sum of its proper divisors (27073860352).

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

18850404608 is a wasteful number, since it uses less digits than its factorization.

18850404608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11784 (or 11770 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The spelling of 18850404608 in words is "eighteen billion, eight hundred fifty million, four hundred four thousand, six hundred eight".