12138885884720 has 80 divisors (see below), whose sum is σ = 32941025353728. Its totient is φ = 4073352579840.

The previous prime is 12138885884711. The next prime is 12138885884771. The reversal of 12138885884720 is 2748858883121.

12138885884720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230575616 + ... + 230628255.

Almost surely, 2^{12138885884720} is an apocalyptic number.

12138885884720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12138885884720 is an abundant number, since it is smaller than the sum of its proper divisors (20802139469008).

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

12138885884720 is a wasteful number, since it uses less digits than its factorization.

12138885884720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461203938 (or 461203932 counting only the distinct ones).

The product of its (nonzero) digits is 55050240, while the sum is 65.

The spelling of 12138885884720 in words is "twelve trillion, one hundred thirty-eight billion, eight hundred eighty-five million, eight hundred eighty-four thousand, seven hundred twenty".