18539060988000 has 768 divisors, whose sum is σ = 73158613032960. Its totient is φ = 4009243392000.

The previous prime is 18539060987983. The next prime is 18539060988001. The reversal of 18539060988000 is 88906093581.

It is a super-2 number, since 2×18539060988000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18539060988001) 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 127 ways as a sum of consecutive naturals, for example, 1294348839 + ... + 1294363161.

It is an arithmetic number, because the mean of its divisors is an integer number (95258610720).

Almost surely, 2^{18539060988000} is an apocalyptic number.

18539060988000 is a gapful number since it is divisible by the number (10) 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 18539060988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36579306516480).

18539060988000 is an abundant number, since it is smaller than the sum of its proper divisors (54619552044960).

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

18539060988000 is a wasteful number, since it uses less digits than its factorization.

18539060988000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15188 (or 15170 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 18539060988000 in words is "eighteen trillion, five hundred thirty-nine billion, sixty million, nine hundred eighty-eight thousand".