18008333998 has 16 divisors (see below), whose sum is σ = 27344116800. Its totient is φ = 8894296800.

The previous prime is 18008333963. The next prime is 18008334061. The reversal of 18008333998 is 89933380081.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 112998 + ... + 220873.

It is an arithmetic number, because the mean of its divisors is an integer number (1709007300).

Almost surely, 2^18008333998 is an apocalyptic number.

18008333998 is a deficient number, since it is larger than the sum of its proper divisors (9335782802).

18008333998 is a wasteful number, since it uses less digits than its factorization.

18008333998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334203.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 18008333998 in words is "eighteen billion, eight million, three hundred thirty-three thousand, nine hundred ninety-eight".