18033437198 has 64 divisors (see below), whose sum is σ = 32592913920. Its totient is φ = 7319894400.

The previous prime is 18033437179. The next prime is 18033437207. The reversal of 18033437198 is 89173433081.

It is a Curzon number.

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, 12159365 + ... + 12160847.

It is an arithmetic number, because the mean of its divisors is an integer number (509264280).

Almost surely, 2^18033437198 is an apocalyptic number.

18033437198 is a deficient number, since it is larger than the sum of its proper divisors (14559476722).

18033437198 is a wasteful number, since it uses less digits than its factorization.

18033437198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 18033437198 in words is "eighteen billion, thirty-three million, four hundred thirty-seven thousand, one hundred ninety-eight".