18381633343000 has 32 divisors (see below), whose sum is σ = 43013022024960. Its totient is φ = 7352653336800.

The previous prime is 18381633342997. The next prime is 18381633343039. The reversal of 18381633343000 is 34333618381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9190815672 + ... + 9190817671.

It is an arithmetic number, because the mean of its divisors is an integer number (1344156938280).

Almost surely, 2^{18381633343000} is an apocalyptic number.

18381633343000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18381633343000 is an abundant number, since it is smaller than the sum of its proper divisors (24631388681960).

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

18381633343000 is a wasteful number, since it uses less digits than its factorization.

18381633343000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381633364 (or 18381633350 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 18381633343000 in words is "eighteen trillion, three hundred eighty-one billion, six hundred thirty-three million, three hundred forty-three thousand".