12956245791 has 8 divisors (see below), whose sum is σ = 17275731840. Its totient is φ = 8637128472.

The previous prime is 12956245781. The next prime is 12956245831. The reversal of 12956245791 is 19754265921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12956245791 - 2⁶ = 12956245727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12956245781) 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, 4206 + ... + 161028.

It is an arithmetic number, because the mean of its divisors is an integer number (2159466480).

Almost surely, 2^12956245791 is an apocalyptic number.

12956245791 is a deficient number, since it is larger than the sum of its proper divisors (4319486049).

12956245791 is a wasteful number, since it uses less digits than its factorization.

12956245791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184365.

The product of its digits is 1360800, while the sum is 51.

The spelling of 12956245791 in words is "twelve billion, nine hundred fifty-six million, two hundred forty-five thousand, seven hundred ninety-one".