12512659529 has 2 divisors, whose sum is σ = 12512659530. Its totient is φ = 12512659528.

The previous prime is 12512659507. The next prime is 12512659531. The reversal of 12512659529 is 92595621521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11632053904 + 880605625 = 107852^2 + 29675^2 .

It is a cyclic number.

It is not a de Polignac number, because 12512659529 - 2³² = 8217692233 is a prime.

Together with 12512659531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12512653529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256329764 + 6256329765.

It is an arithmetic number, because the mean of its divisors is an integer number (6256329765).

Almost surely, 2^12512659529 is an apocalyptic number.

It is an amenable number.

12512659529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512659529 is an equidigital number, since it uses as much as digits as its factorization.

12512659529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 47.

The spelling of 12512659529 in words is "twelve billion, five hundred twelve million, six hundred fifty-nine thousand, five hundred twenty-nine".