18873411335680 has 640 divisors, whose sum is σ = 52596323619840. Its totient is φ = 6476709888000.

The previous prime is 18873411335663. The next prime is 18873411335687. The reversal of 18873411335680 is 8653311437881.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18873411335687) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25960675477 + ... + 25960676203.

It is an arithmetic number, because the mean of its divisors is an integer number (82181755656).

Almost surely, 2^{18873411335680} is an apocalyptic number.

18873411335680 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 18873411335680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26298161809920).

18873411335680 is an abundant number, since it is smaller than the sum of its proper divisors (33722912284160).

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

18873411335680 is an equidigital number, since it uses as much as digits as its factorization.

18873411335680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 18873411335680 in words is "eighteen trillion, eight hundred seventy-three billion, four hundred eleven million, three hundred thirty-five thousand, six hundred eighty".