7899002345309 has 2 divisors, whose sum is σ = 7899002345310. Its totient is φ = 7899002345308.

The previous prime is 7899002345287. The next prime is 7899002345321. The reversal of 7899002345309 is 9035432009987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7696685004100 + 202317341209 = 2774290^2 + 449797^2 .

It is a cyclic number.

It is not a de Polignac number, because 7899002345309 - 2⁸ = 7899002345053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7899002345359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3949501172654 + 3949501172655.

It is an arithmetic number, because the mean of its divisors is an integer number (3949501172655).

Almost surely, 2^{7899002345309} is an apocalyptic number.

It is an amenable number.

7899002345309 is a deficient number, since it is larger than the sum of its proper divisors (1).

7899002345309 is an equidigital number, since it uses as much as digits as its factorization.

7899002345309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 7899002345309 in words is "seven trillion, eight hundred ninety-nine billion, two million, three hundred forty-five thousand, three hundred nine".