12568745791 has 16 divisors (see below), whose sum is σ = 14654965824. Its totient is φ = 10555743744.

The previous prime is 12568745789. The next prime is 12568745843. The reversal of 12568745791 is 19754786521.

It is not a de Polignac number, because 12568745791 - 2¹ = 12568745789 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 (12568745731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258471 + ... + 303223.

It is an arithmetic number, because the mean of its divisors is an integer number (915935364).

Almost surely, 2^12568745791 is an apocalyptic number.

12568745791 is a deficient number, since it is larger than the sum of its proper divisors (2086220033).

12568745791 is an equidigital number, since it uses as much as digits as its factorization.

12568745791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45570.

The product of its digits is 4233600, while the sum is 55.

The spelling of 12568745791 in words is "twelve billion, five hundred sixty-eight million, seven hundred forty-five thousand, seven hundred ninety-one".