12895394513 has 2 divisors, whose sum is σ = 12895394514. Its totient is φ = 12895394512.

The previous prime is 12895394443. The next prime is 12895394527. The reversal of 12895394513 is 31549359821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8041067584 + 4854326929 = 89672^2 + 69673^2 .

It is a cyclic number.

It is not a de Polignac number, because 12895394513 - 2¹⁶ = 12895328977 is a prime.

It is not a weakly prime, because it can be changed into another prime (12895394573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447697256 + 6447697257.

It is an arithmetic number, because the mean of its divisors is an integer number (6447697257).

Almost surely, 2^12895394513 is an apocalyptic number.

It is an amenable number.

12895394513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12895394513 is an equidigital number, since it uses as much as digits as its factorization.

12895394513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The spelling of 12895394513 in words is "twelve billion, eight hundred ninety-five million, three hundred ninety-four thousand, five hundred thirteen".