18933099118 has 8 divisors (see below), whose sum is σ = 28422873648. Its totient is φ = 9458807904.

The previous prime is 18933099089. The next prime is 18933099161. The reversal of 18933099118 is 81199033981.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867771 + ... + 3872662.

It is an arithmetic number, because the mean of its divisors is an integer number (3552859206).

Almost surely, 2^18933099118 is an apocalyptic number.

18933099118 is a deficient number, since it is larger than the sum of its proper divisors (9489774530).

18933099118 is a wasteful number, since it uses less digits than its factorization.

18933099118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741658.

The product of its (nonzero) digits is 419904, while the sum is 52.

The spelling of 18933099118 in words is "eighteen billion, nine hundred thirty-three million, ninety-nine thousand, one hundred eighteen".