12512869433 has 2 divisors, whose sum is σ = 12512869434. Its totient is φ = 12512869432.

The previous prime is 12512869393. The next prime is 12512869493. The reversal of 12512869433 is 33496821521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12279299344 + 233570089 = 110812^2 + 15283^2 .

It is a cyclic number.

It is not a de Polignac number, because 12512869433 - 2¹⁴ = 12512853049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12512869493) 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, 6256434716 + 6256434717.

It is an arithmetic number, because the mean of its divisors is an integer number (6256434717).

Almost surely, 2^12512869433 is an apocalyptic number.

It is an amenable number.

12512869433 is a deficient number, since it is larger than the sum of its proper divisors (1).

12512869433 is an equidigital number, since it uses as much as digits as its factorization.

12512869433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The spelling of 12512869433 in words is "twelve billion, five hundred twelve million, eight hundred sixty-nine thousand, four hundred thirty-three".