18394112000 has 448 divisors, whose sum is σ = 52995990528. Its totient is φ = 6307840000.

The previous prime is 18394111997. The next prime is 18394112027. The reversal of 18394112000 is 21149381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259071965 + ... + 259072035.

Almost surely, 2^18394112000 is an apocalyptic number.

18394112000 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 18394112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26497995264).

18394112000 is an abundant number, since it is smaller than the sum of its proper divisors (34601878528).

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

18394112000 is an equidigital number, since it uses as much as digits as its factorization.

18394112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 18394112000 in words is "eighteen billion, three hundred ninety-four million, one hundred twelve thousand".