12710977838 has 16 divisors (see below), whose sum is σ = 20564303760. Its totient is φ = 5857694976.

The previous prime is 12710977837. The next prime is 12710977841. The reversal of 12710977838 is 83877901721.

It is a self number, because there is not a number n which added to its sum of digits gives 12710977838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12710977837) 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, 353795 + ... + 388062.

It is an arithmetic number, because the mean of its divisors is an integer number (1285268985).

Almost surely, 2^12710977838 is an apocalyptic number.

12710977838 is a deficient number, since it is larger than the sum of its proper divisors (7853325922).

12710977838 is a wasteful number, since it uses less digits than its factorization.

12710977838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742531.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The spelling of 12710977838 in words is "twelve billion, seven hundred ten million, nine hundred seventy-seven thousand, eight hundred thirty-eight".