18143302198 has 32 divisors (see below), whose sum is σ = 34163274240. Its totient is φ = 7046170560.

The previous prime is 18143302159. The next prime is 18143302211. The reversal of 18143302198 is 89120334181.

It is a self number, because there is not a number n which added to its sum of digits gives 18143302198.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476663 + ... + 1488898.

It is an arithmetic number, because the mean of its divisors is an integer number (1067602320).

Almost surely, 2^18143302198 is an apocalyptic number.

18143302198 is a deficient number, since it is larger than the sum of its proper divisors (16019972042).

18143302198 is a wasteful number, since it uses less digits than its factorization.

18143302198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965612.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 18143302198 in words is "eighteen billion, one hundred forty-three million, three hundred two thousand, one hundred ninety-eight".