12864554317 has 2 divisors, whose sum is σ = 12864554318. Its totient is φ = 12864554316.

The previous prime is 12864554243. The next prime is 12864554321. The reversal of 12864554317 is 71345546821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7217182116 + 5647372201 = 84954^2 + 75149^2 .

It is a cyclic number.

It is not a de Polignac number, because 12864554317 - 2²³ = 12856165709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12864554377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6432277158 + 6432277159.

It is an arithmetic number, because the mean of its divisors is an integer number (6432277159).

Almost surely, 2^12864554317 is an apocalyptic number.

It is an amenable number.

12864554317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12864554317 is an equidigital number, since it uses as much as digits as its factorization.

12864554317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The spelling of 12864554317 in words is "twelve billion, eight hundred sixty-four million, five hundred fifty-four thousand, three hundred seventeen".