1988489188224 has 768 divisors, whose sum is σ = 7760620224000. Its totient is φ = 489293291520.

The previous prime is 1988489188171. The next prime is 1988489188291. The reversal of 1988489188224 is 4228819848891.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55599532 + ... + 55635284.

It is an arithmetic number, because the mean of its divisors is an integer number (10104974250).

Almost surely, 2^{1988489188224} is an apocalyptic number.

1988489188224 is a gapful number since it is divisible by the number (14) 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 1988489188224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3880310112000).

1988489188224 is an abundant number, since it is smaller than the sum of its proper divisors (5772131035776).

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

1988489188224 is a wasteful number, since it uses less digits than its factorization.

1988489188224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35824 (or 35795 counting only the distinct ones).

The product of its digits is 169869312, while the sum is 72.

The spelling of 1988489188224 in words is "one trillion, nine hundred eighty-eight billion, four hundred eighty-nine million, one hundred eighty-eight thousand, two hundred twenty-four".