12977865322 has 16 divisors (see below), whose sum is σ = 20522601792. Its totient is φ = 6142815360.

The previous prime is 12977865311. The next prime is 12977865337. The reversal of 12977865322 is 22356877921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12977865322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449804 + ... + 1458727.

It is an arithmetic number, because the mean of its divisors is an integer number (1282662612).

Almost surely, 2^12977865322 is an apocalyptic number.

12977865322 is a deficient number, since it is larger than the sum of its proper divisors (7544736470).

12977865322 is a wasteful number, since it uses less digits than its factorization.

12977865322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908653.

The product of its digits is 2540160, while the sum is 52.

The spelling of 12977865322 in words is "twelve billion, nine hundred seventy-seven million, eight hundred sixty-five thousand, three hundred twenty-two".