12911988879960 has 32 divisors (see below), whose sum is σ = 38735966640240. Its totient is φ = 3443197034624.

The previous prime is 12911988879929. The next prime is 12911988879961. The reversal of 12911988879960 is 6997888911921.

It is a happy number.

12911988879960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911988879961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53799953547 + ... + 53799953786.

Almost surely, 2^{12911988879960} is an apocalyptic number.

12911988879960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12911988879960 is an abundant number, since it is smaller than the sum of its proper divisors (25823977760280).

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

12911988879960 is a wasteful number, since it uses less digits than its factorization.

12911988879960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107599907347 (or 107599907343 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 78.

The spelling of 12911988879960 in words is "twelve trillion, nine hundred eleven billion, nine hundred eighty-eight million, eight hundred seventy-nine thousand, nine hundred sixty".