12816064589 has 2 divisors, whose sum is σ = 12816064590. Its totient is φ = 12816064588.

The previous prime is 12816064549. The next prime is 12816064603. The reversal of 12816064589 is 98546061821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11260393225 + 1555671364 = 106115^2 + 39442^2 .

It is a cyclic number.

It is not a de Polignac number, because 12816064589 - 2¹² = 12816060493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12816064529) 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, 6408032294 + 6408032295.

It is an arithmetic number, because the mean of its divisors is an integer number (6408032295).

Almost surely, 2^12816064589 is an apocalyptic number.

It is an amenable number.

12816064589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12816064589 is an equidigital number, since it uses as much as digits as its factorization.

12816064589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 12816064589 in words is "twelve billion, eight hundred sixteen million, sixty-four thousand, five hundred eighty-nine".