18088699988736 has 648 divisors, whose sum is σ = 59899201545456. Its totient is φ = 5229379584000.

The previous prime is 18088699988731. The next prime is 18088699988773. The reversal of 18088699988736 is 63788999688081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18088699988731) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 4521042736 + ... + 4521046736.

It is an arithmetic number, because the mean of its divisors is an integer number (92437039422).

Almost surely, 2^{18088699988736} is an apocalyptic number.

18088699988736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18088699988736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29949600772728).

18088699988736 is an abundant number, since it is smaller than the sum of its proper divisors (41810501556720).

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

18088699988736 is a wasteful number, since it uses less digits than its factorization.

18088699988736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 18059231232, while the sum is 90.

The spelling of 18088699988736 in words is "eighteen trillion, eighty-eight billion, six hundred ninety-nine million, nine hundred eighty-eight thousand, seven hundred thirty-six".