591399342689 has 2 divisors, whose sum is σ = 591399342690. Its totient is φ = 591399342688.

The previous prime is 591399342581. The next prime is 591399342719. The reversal of 591399342689 is 986243993195.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591384070225 + 15272464 = 769015^2 + 3908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-591399342689 is a prime.

It is not a weakly prime, because it can be changed into another prime (591399342089) 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, 295699671344 + 295699671345.

It is an arithmetic number, because the mean of its divisors is an integer number (295699671345).

Almost surely, 2^591399342689 is an apocalyptic number.

It is an amenable number.

591399342689 is a deficient number, since it is larger than the sum of its proper divisors (1).

591399342689 is an equidigital number, since it uses as much as digits as its factorization.

591399342689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113374080, while the sum is 68.

The spelling of 591399342689 in words is "five hundred ninety-one billion, three hundred ninety-nine million, three hundred forty-two thousand, six hundred eighty-nine".