18479000199 has 32 divisors (see below), whose sum is σ = 27487724544. Its totient is φ = 10946218880.

The previous prime is 18479000179. The next prime is 18479000203. The reversal of 18479000199 is 99100097481.

It is a cyclic number.

It is not a de Polignac number, because 18479000199 - 2⁵ = 18479000167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18479000159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1191217 + ... + 1206629.

It is an arithmetic number, because the mean of its divisors is an integer number (858991392).

Almost surely, 2^18479000199 is an apocalyptic number.

18479000199 is the 72662-nd nonagonal number.

18479000199 is a deficient number, since it is larger than the sum of its proper divisors (9008724345).

18479000199 is a wasteful number, since it uses less digits than its factorization.

18479000199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16247.

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 18479000199 in words is "eighteen billion, four hundred seventy-nine million, one hundred ninety-nine", and thus it is an aban number.