7243376568689 has 2 divisors, whose sum is σ = 7243376568690. Its totient is φ = 7243376568688.

The previous prime is 7243376568653. The next prime is 7243376568697. The reversal of 7243376568689 is 9868656733427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6305035626289 + 938340942400 = 2510983^2 + 968680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7243376568689 is a prime.

It is not a weakly prime, because it can be changed into another prime (7243376588689) 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, 3621688284344 + 3621688284345.

It is an arithmetic number, because the mean of its divisors is an integer number (3621688284345).

Almost surely, 2^{7243376568689} is an apocalyptic number.

It is an amenable number.

7243376568689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243376568689 is an equidigital number, since it uses as much as digits as its factorization.

7243376568689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2194698240, while the sum is 74.

The spelling of 7243376568689 in words is "seven trillion, two hundred forty-three billion, three hundred seventy-six million, five hundred sixty-eight thousand, six hundred eighty-nine".