18030199188 has 48 divisors (see below), whose sum is σ = 44436006720. Its totient is φ = 5674293504.

The previous prime is 18030199183. The next prime is 18030199211. The reversal of 18030199188 is 88199103081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030199183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68145 + ... + 201752.

It is an arithmetic number, because the mean of its divisors is an integer number (925750140).

Almost surely, 2^18030199188 is an apocalyptic number.

It is an amenable number.

18030199188 is an abundant number, since it is smaller than the sum of its proper divisors (26405807532).

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

18030199188 is a wasteful number, since it uses less digits than its factorization.

18030199188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270216 (or 270214 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 48.

The spelling of 18030199188 in words is "eighteen billion, thirty million, one hundred ninety-nine thousand, one hundred eighty-eight".