18003323884 has 48 divisors (see below), whose sum is σ = 41057368128. Its totient is φ = 6703239168.

The previous prime is 18003323861. The next prime is 18003323887. The reversal of 18003323884 is 48832330081.

It is not an unprimeable number, because it can be changed into a prime (18003323887) by changing a digit.

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, 1448509 + ... + 1460884.

It is an arithmetic number, because the mean of its divisors is an integer number (855361836).

Almost surely, 2^18003323884 is an apocalyptic number.

18003323884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18003323884 is an abundant number, since it is smaller than the sum of its proper divisors (23054044244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18003323884 is a wasteful number, since it uses less digits than its factorization.

18003323884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909434 (or 2909432 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 18003323884 in words is "eighteen billion, three million, three hundred twenty-three thousand, eight hundred eighty-four".