12793711391 has 4 divisors (see below), whose sum is σ = 12911085000. Its totient is φ = 12676337784.

The previous prime is 12793711379. The next prime is 12793711417. The reversal of 12793711391 is 19311739721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12793711391 - 2²² = 12789517087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12793711991) 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, 58686641 + ... + 58686858.

It is an arithmetic number, because the mean of its divisors is an integer number (3227771250).

Almost surely, 2^12793711391 is an apocalyptic number.

12793711391 is a deficient number, since it is larger than the sum of its proper divisors (117373609).

12793711391 is a wasteful number, since it uses less digits than its factorization.

12793711391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117373608.

The product of its digits is 71442, while the sum is 44.

The spelling of 12793711391 in words is "twelve billion, seven hundred ninety-three million, seven hundred eleven thousand, three hundred ninety-one".