18087195118140 has 36 divisors (see below), whose sum is σ = 54864491858904. Its totient is φ = 4823252031456.

The previous prime is 18087195118123. The next prime is 18087195118183. The reversal of 18087195118140 is 4181159178081.

It is a happy number.

18087195118140 is a `hidden beast` number, since 1 + 8 + 0 + 8 + 7 + 1 + 9 + 511 + 81 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 50242208482 + ... + 50242208841.

Almost surely, 2^{18087195118140} is an apocalyptic number.

18087195118140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18087195118140 is an abundant number, since it is smaller than the sum of its proper divisors (36777296740764).

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

18087195118140 is a wasteful number, since it uses less digits than its factorization.

18087195118140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100484417338 (or 100484417333 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 54.

The spelling of 18087195118140 in words is "eighteen trillion, eighty-seven billion, one hundred ninety-five million, one hundred eighteen thousand, one hundred forty".