12519966769 has 2 divisors, whose sum is σ = 12519966770. Its totient is φ = 12519966768.

The previous prime is 12519966757. The next prime is 12519966821. The reversal of 12519966769 is 96766991521.

12519966769 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., 6531064225 + 5988902544 = 80815^2 + 77388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12519966769 - 2¹⁷ = 12519835697 is a prime.

It is a super-2 number, since 2×12519966769² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12519966169) 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, 6259983384 + 6259983385.

It is an arithmetic number, because the mean of its divisors is an integer number (6259983385).

Almost surely, 2^12519966769 is an apocalyptic number.

It is an amenable number.

12519966769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12519966769 is an equidigital number, since it uses as much as digits as its factorization.

12519966769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 61.

The spelling of 12519966769 in words is "twelve billion, five hundred nineteen million, nine hundred sixty-six thousand, seven hundred sixty-nine".