12389273400689 has 2 divisors, whose sum is σ = 12389273400690. Its totient is φ = 12389273400688.

The previous prime is 12389273400571. The next prime is 12389273400703. The reversal of 12389273400689 is 98600437298321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11794986590689 + 594286810000 = 3434383^2 + 770900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12389273400689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12389273400389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194636700344 + 6194636700345.

It is an arithmetic number, because the mean of its divisors is an integer number (6194636700345).

Almost surely, 2^{12389273400689} is an apocalyptic number.

It is an amenable number.

12389273400689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12389273400689 is an equidigital number, since it uses as much as digits as its factorization.

12389273400689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 12389273400689 in words is "twelve trillion, three hundred eighty-nine billion, two hundred seventy-three million, four hundred thousand, six hundred eighty-nine".