12977579011506 has 32 divisors (see below), whose sum is σ = 26021769117120. Its totient is φ = 4314758855616.

The previous prime is 12977579011483. The next prime is 12977579011511. The reversal of 12977579011506 is 60511097577921.

It is a self number, because there is not a number n which added to its sum of digits gives 12977579011506.

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, 55118725 + ... + 55353671.

It is an arithmetic number, because the mean of its divisors is an integer number (813180284910).

Almost surely, 2^{12977579011506} is an apocalyptic number.

12977579011506 is an abundant number, since it is smaller than the sum of its proper divisors (13044190105614).

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

12977579011506 is a wasteful number, since it uses less digits than its factorization.

12977579011506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258538.

The product of its (nonzero) digits is 8334900, while the sum is 60.

The spelling of 12977579011506 in words is "twelve trillion, nine hundred seventy-seven billion, five hundred seventy-nine million, eleven thousand, five hundred six".