18804947199 has 8 divisors (see below), whose sum is σ = 25090596480. Its totient is φ = 12527964696.

The previous prime is 18804947191. The next prime is 18804947201. The reversal of 18804947199 is 99174940881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18804947199 - 2³ = 18804947191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18804947191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2161629 + ... + 2170310.

It is an arithmetic number, because the mean of its divisors is an integer number (3136324560).

Almost surely, 2^18804947199 is an apocalyptic number.

18804947199 is a deficient number, since it is larger than the sum of its proper divisors (6285649281).

18804947199 is a wasteful number, since it uses less digits than its factorization.

18804947199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333389.

The product of its (nonzero) digits is 5225472, while the sum is 60.

The spelling of 18804947199 in words is "eighteen billion, eight hundred four million, nine hundred forty-seven thousand, one hundred ninety-nine".