18003784868200 has 96 divisors (see below), whose sum is σ = 42058727712000. Its totient is φ = 7167153324800.

The previous prime is 18003784868171. The next prime is 18003784868231. The reversal of 18003784868200 is 286848730081.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 81580005 + ... + 81800395.

It is an arithmetic number, because the mean of its divisors is an integer number (438111747000).

Almost surely, 2^{18003784868200} is an apocalyptic number.

18003784868200 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 18003784868200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21029363856000).

18003784868200 is an abundant number, since it is smaller than the sum of its proper divisors (24054942843800).

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

18003784868200 is a wasteful number, since it uses less digits than its factorization.

18003784868200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222355 (or 222346 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 18003784868200 in words is "eighteen trillion, three billion, seven hundred eighty-four million, eight hundred sixty-eight thousand, two hundred".