5152642565909 has 2 divisors, whose sum is σ = 5152642565910. Its totient is φ = 5152642565908.

The previous prime is 5152642565831. The next prime is 5152642565933. The reversal of 5152642565909 is 9095652462515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3543542704900 + 1609099861009 = 1882430^2 + 1268503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5152642565909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5152642565999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2576321282954 + 2576321282955.

It is an arithmetic number, because the mean of its divisors is an integer number (2576321282955).

Almost surely, 2^{5152642565909} is an apocalyptic number.

It is an amenable number.

5152642565909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5152642565909 is an equidigital number, since it uses as much as digits as its factorization.

5152642565909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 5152642565909 in words is "five trillion, one hundred fifty-two billion, six hundred forty-two million, five hundred sixty-five thousand, nine hundred nine".