18040828099 has 16 divisors (see below), whose sum is σ = 21016532160. Its totient is φ = 15164997120.

The previous prime is 18040828093. The next prime is 18040828121. The reversal of 18040828099 is 99082804081.

It is not a de Polignac number, because 18040828099 - 2¹⁷ = 18040697027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18040828093) 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, 925647 + ... + 944935.

It is an arithmetic number, because the mean of its divisors is an integer number (1313533260).

Almost surely, 2^18040828099 is an apocalyptic number.

18040828099 is a deficient number, since it is larger than the sum of its proper divisors (2975704061).

18040828099 is a wasteful number, since it uses less digits than its factorization.

18040828099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870.

The product of its (nonzero) digits is 331776, while the sum is 49.

It can be divided in two parts, 1804082 and 8099, that added together give a palindrome (1812181).

The spelling of 18040828099 in words is "eighteen billion, forty million, eight hundred twenty-eight thousand, ninety-nine".