18007776993852 has 72 divisors (see below), whose sum is σ = 47206347552000. Its totient is φ = 6002493687216.

The previous prime is 18007776993827. The next prime is 18007776993901. The reversal of 18007776993852 is 25839967770081.

18007776993852 is a `hidden beast` number, since 180 + 0 + 7 + 7 + 7 + 69 + 9 + 385 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 81595149 + ... + 81815547.

It is an arithmetic number, because the mean of its divisors is an integer number (655643716000).

Almost surely, 2^{18007776993852} is an apocalyptic number.

18007776993852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18007776993852 is an abundant number, since it is smaller than the sum of its proper divisors (29198570558148).

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

18007776993852 is a wasteful number, since it uses less digits than its factorization.

18007776993852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304477 (or 304463 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 72.

The spelling of 18007776993852 in words is "eighteen trillion, seven billion, seven hundred seventy-six million, nine hundred ninety-three thousand, eight hundred fifty-two".