18086132208 has 80 divisors (see below), whose sum is σ = 48016787840. Its totient is φ = 5861922048.

The previous prime is 18086132191. The next prime is 18086132209. The reversal of 18086132208 is 80223168081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18086132209) 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, 4166103 + ... + 4170441.

It is an arithmetic number, because the mean of its divisors is an integer number (600209848).

Almost surely, 2^18086132208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18086132208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24008393920).

18086132208 is an abundant number, since it is smaller than the sum of its proper divisors (29930655632).

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

18086132208 is a wasteful number, since it uses less digits than its factorization.

18086132208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734 (or 6728 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 18086132208 in words is "eighteen billion, eighty-six million, one hundred thirty-two thousand, two hundred eight".