12746539129 has 2 divisors, whose sum is σ = 12746539130. Its totient is φ = 12746539128.

The previous prime is 12746539087. The next prime is 12746539213. The reversal of 12746539129 is 92193564721.

12746539129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12734671104 + 11868025 = 112848^2 + 3445^2 .

It is an emirp because it is prime and its reverse (92193564721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12746539129 - 2²³ = 12738150521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12746539829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6373269564 + 6373269565.

It is an arithmetic number, because the mean of its divisors is an integer number (6373269565).

Almost surely, 2^12746539129 is an apocalyptic number.

It is an amenable number.

12746539129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12746539129 is an equidigital number, since it uses as much as digits as its factorization.

12746539129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 49.

The spelling of 12746539129 in words is "twelve billion, seven hundred forty-six million, five hundred thirty-nine thousand, one hundred twenty-nine".