18708320000 has 90 divisors (see below), whose sum is σ = 46664912448. Its totient is φ = 7483264000.

The previous prime is 18708319907. The next prime is 18708320003. The reversal of 18708320000 is 2380781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18708320003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 101537 + ... + 218463.

Almost surely, 2^18708320000 is an apocalyptic number.

18708320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18708320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23332456224).

18708320000 is an abundant number, since it is smaller than the sum of its proper divisors (27956592448).

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

18708320000 is an frugal number, since it uses more digits than its factorization.

18708320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116963 (or 116934 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 18708320000 in words is "eighteen billion, seven hundred eight million, three hundred twenty thousand".