18833018004 has 72 divisors (see below), whose sum is σ = 48293877632. Its totient is φ = 6187052160.

The previous prime is 18833017993. The next prime is 18833018059. The reversal of 18833018004 is 40081033881.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18833018004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7018047 + ... + 7020729.

Almost surely, 2^18833018004 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 18833018004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24146938816).

18833018004 is an abundant number, since it is smaller than the sum of its proper divisors (29460859628).

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

18833018004 is a wasteful number, since it uses less digits than its factorization.

18833018004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437 (or 5432 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 18833018004 in words is "eighteen billion, eight hundred thirty-three million, eighteen thousand, four".