18299719233 has 16 divisors (see below), whose sum is σ = 27128327040. Its totient is φ = 12191878512.

The previous prime is 18299719189. The next prime is 18299719253. The reversal of 18299719233 is 33291799281.

It is not a de Polignac number, because 18299719233 - 2⁹ = 18299718721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18299719233.

It is not an unprimeable number, because it can be changed into a prime (18299719253) 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, 177966 + ... + 261287.

It is an arithmetic number, because the mean of its divisors is an integer number (1695520440).

Almost surely, 2^18299719233 is an apocalyptic number.

It is an amenable number.

18299719233 is a deficient number, since it is larger than the sum of its proper divisors (8828607807).

18299719233 is a wasteful number, since it uses less digits than its factorization.

18299719233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440805 (or 440799 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 18299719233 in words is "eighteen billion, two hundred ninety-nine million, seven hundred nineteen thousand, two hundred thirty-three".