18033912000 has 336 divisors, whose sum is σ = 69476246112. Its totient is φ = 4438886400.

The previous prime is 18033911983. The next prime is 18033912037. The reversal of 18033912000 is 21933081.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 926367 + ... + 945633.

It is an arithmetic number, because the mean of its divisors is an integer number (206774542).

Almost surely, 2^18033912000 is an apocalyptic number.

18033912000 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 18033912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34738123056).

18033912000 is an abundant number, since it is smaller than the sum of its proper divisors (51442334112).

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

18033912000 is a wasteful number, since it uses less digits than its factorization.

18033912000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19313 (or 19290 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 18033912000 in words is "eighteen billion, thirty-three million, nine hundred twelve thousand".