12466978776888 has 64 divisors (see below), whose sum is σ = 31714436476800. Its totient is φ = 4082810889600.

The previous prime is 12466978776887. The next prime is 12466978777081. The reversal of 12466978776888 is 88867787966421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12466978776887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202938 + ... + 4997513.

It is an arithmetic number, because the mean of its divisors is an integer number (495538069950).

Almost surely, 2^{12466978776888} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12466978776888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15857218238400).

12466978776888 is an abundant number, since it is smaller than the sum of its proper divisors (19247457699912).

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

12466978776888 is a wasteful number, since it uses less digits than its factorization.

12466978776888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202212 (or 5202208 counting only the distinct ones).

The product of its digits is 21849440256, while the sum is 87.

The spelling of 12466978776888 in words is "twelve trillion, four hundred sixty-six billion, nine hundred seventy-eight million, seven hundred seventy-six thousand, eight hundred eighty-eight".