12512869393 has 2 divisors, whose sum is σ = 12512869394. Its totient is φ = 12512869392.

The previous prime is 12512869373. The next prime is 12512869433. The reversal of 12512869393 is 39396821521.

12512869393 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., 12089662209 + 423207184 = 109953^2 + 20572^2 .

It is an emirp because it is prime and its reverse (39396821521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12512869393 - 2⁹ = 12512868881 is a prime.

It is not a weakly prime, because it can be changed into another prime (12512869373) 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, 6256434696 + 6256434697.

It is an arithmetic number, because the mean of its divisors is an integer number (6256434697).

Almost surely, 2^12512869393 is an apocalyptic number.

It is an amenable number.

12512869393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512869393 is an equidigital number, since it uses as much as digits as its factorization.

12512869393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The spelling of 12512869393 in words is "twelve billion, five hundred twelve million, eight hundred sixty-nine thousand, three hundred ninety-three".