5051311065397 has 2 divisors, whose sum is σ = 5051311065398. Its totient is φ = 5051311065396.

The previous prime is 5051311065389. The next prime is 5051311065407. The reversal of 5051311065397 is 7935601131505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4309738632081 + 741572433316 = 2075991^2 + 861146^2 .

It is a cyclic number.

It is not a de Polignac number, because 5051311065397 - 2³ = 5051311065389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5051311045397) 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, 2525655532698 + 2525655532699.

It is an arithmetic number, because the mean of its divisors is an integer number (2525655532699).

Almost surely, 2^{5051311065397} is an apocalyptic number.

It is an amenable number.

5051311065397 is a deficient number, since it is larger than the sum of its proper divisors (1).

5051311065397 is an equidigital number, since it uses as much as digits as its factorization.

5051311065397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 425250, while the sum is 46.

The spelling of 5051311065397 in words is "five trillion, fifty-one billion, three hundred eleven million, sixty-five thousand, three hundred ninety-seven".