11988894623120 has 40 divisors (see below), whose sum is σ = 27881475705720. Its totient is φ = 4794302673920.

The previous prime is 11988894623047. The next prime is 11988894623171. The reversal of 11988894623120 is 2132649888911.

It can be written as a sum of positive squares in 4 ways, for example, as 1282701214096 + 10706193409024 = 1132564^2 + 3272032^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19304525 + ... + 19915884.

It is an arithmetic number, because the mean of its divisors is an integer number (697036892643).

Almost surely, 2^{11988894623120} is an apocalyptic number.

11988894623120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11988894623120 is an abundant number, since it is smaller than the sum of its proper divisors (15892581082600).

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

11988894623120 is a wasteful number, since it uses less digits than its factorization.

11988894623120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39224243 (or 39224237 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 62.

The spelling of 11988894623120 in words is "eleven trillion, nine hundred eighty-eight billion, eight hundred ninety-four million, six hundred twenty-three thousand, one hundred twenty".