12793163977 has 4 divisors (see below), whose sum is σ = 13956178896. Its totient is φ = 11630149060.

The previous prime is 12793163959. The next prime is 12793163987. The reversal of 12793163977 is 77936139721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12793163977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12793163927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581507443 + ... + 581507464.

It is an arithmetic number, because the mean of its divisors is an integer number (3489044724).

Almost surely, 2^12793163977 is an apocalyptic number.

It is an amenable number.

12793163977 is a deficient number, since it is larger than the sum of its proper divisors (1163014919).

12793163977 is a wasteful number, since it uses less digits than its factorization.

12793163977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163014918.

The product of its digits is 3000564, while the sum is 55.

The spelling of 12793163977 in words is "twelve billion, seven hundred ninety-three million, one hundred sixty-three thousand, nine hundred seventy-seven".