12526247429 has 2 divisors, whose sum is σ = 12526247430. Its totient is φ = 12526247428.

The previous prime is 12526247381. The next prime is 12526247467. The reversal of 12526247429 is 92474262521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12521162404 + 5085025 = 111898^2 + 2255^2 .

It is an emirp because it is prime and its reverse (92474262521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12526247429 is a prime.

It is a super-2 number, since 2×12526247429² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12526247429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12526247329) 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, 6263123714 + 6263123715.

It is an arithmetic number, because the mean of its divisors is an integer number (6263123715).

Almost surely, 2^12526247429 is an apocalyptic number.

It is an amenable number.

12526247429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12526247429 is an equidigital number, since it uses as much as digits as its factorization.

12526247429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The spelling of 12526247429 in words is "twelve billion, five hundred twenty-six million, two hundred forty-seven thousand, four hundred twenty-nine".