18818790912000 has 1456 divisors, whose sum is σ = 71149971090432. Its totient is φ = 4966288588800.

The previous prime is 18818790911971. The next prime is 18818790912043. The reversal of 18818790912000 is 21909781881.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 47402495802 + ... + 47402496198.

Almost surely, 2^{18818790912000} is an apocalyptic number.

18818790912000 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 18818790912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35574985545216).

18818790912000 is an abundant number, since it is smaller than the sum of its proper divisors (52331180178432).

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

18818790912000 is an frugal number, since it uses more digits than its factorization.

18818790912000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 54.

The spelling of 18818790912000 in words is "eighteen trillion, eight hundred eighteen billion, seven hundred ninety million, nine hundred twelve thousand".