12967938779808 has 192 divisors, whose sum is σ = 37371106080000. Its totient is φ = 3919130148864.

The previous prime is 12967938779797. The next prime is 12967938779869. The reversal of 12967938779808 is 80897783976921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20464918 + ... + 21089066.

It is an arithmetic number, because the mean of its divisors is an integer number (194641177500).

Almost surely, 2^{12967938779808} 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 12967938779808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18685553040000).

12967938779808 is an abundant number, since it is smaller than the sum of its proper divisors (24403167300192).

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

12967938779808 is a wasteful number, since it uses less digits than its factorization.

12967938779808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624647 (or 624639 counting only the distinct ones).

The product of its (nonzero) digits is 4608866304, while the sum is 84.

The spelling of 12967938779808 in words is "twelve trillion, nine hundred sixty-seven billion, nine hundred thirty-eight million, seven hundred seventy-nine thousand, eight hundred eight".