18117298200 has 48 divisors (see below), whose sum is σ = 56163626280. Its totient is φ = 4831279360.

The previous prime is 18117298189. The next prime is 18117298207. The reversal of 18117298200 is 289271181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18117298207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15097149 + ... + 15098348.

Almost surely, 2^18117298200 is an apocalyptic number.

18117298200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18117298200 is an abundant number, since it is smaller than the sum of its proper divisors (38046328080).

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

18117298200 is a wasteful number, since it uses less digits than its factorization.

18117298200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30195516 (or 30195507 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 39.

The spelling of 18117298200 in words is "eighteen billion, one hundred seventeen million, two hundred ninety-eight thousand, two hundred".