18324531799 has 16 divisors (see below), whose sum is σ = 22025779200. Its totient is φ = 14913269280.

The previous prime is 18324531793. The next prime is 18324531809. The reversal of 18324531799 is 99713542381.

It is not a de Polignac number, because 18324531799 - 2⁹ = 18324531287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324531793) 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, 785149 + ... + 808150.

It is an arithmetic number, because the mean of its divisors is an integer number (1376611200).

Almost surely, 2^18324531799 is an apocalyptic number.

18324531799 is a deficient number, since it is larger than the sum of its proper divisors (3701247401).

18324531799 is a wasteful number, since it uses less digits than its factorization.

18324531799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593390.

The product of its digits is 1632960, while the sum is 52.

The spelling of 18324531799 in words is "eighteen billion, three hundred twenty-four million, five hundred thirty-one thousand, seven hundred ninety-nine".