18136085682 has 128 divisors (see below), whose sum is σ = 44649013248. Its totient is φ = 4835635200.

The previous prime is 18136085641. The next prime is 18136085683. The reversal of 18136085682 is 28658063181.

It is not an unprimeable number, because it can be changed into a prime (18136085683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1776978 + ... + 1787154.

It is an arithmetic number, because the mean of its divisors is an integer number (348820416).

Almost surely, 2^18136085682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18136085682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22324506624).

18136085682 is an abundant number, since it is smaller than the sum of its proper divisors (26512927566).

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

18136085682 is a wasteful number, since it uses less digits than its factorization.

18136085682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10304.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 18136085682 in words is "eighteen billion, one hundred thirty-six million, eighty-five thousand, six hundred eighty-two".