5117697857 has 2 divisors, whose sum is σ = 5117697858. Its totient is φ = 5117697856.

The previous prime is 5117697853. The next prime is 5117697887. The reversal of 5117697857 is 7587967115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4689373441 + 428324416 = 68479^2 + 20696^2 .

It is a cyclic number.

It is not a de Polignac number, because 5117697857 - 2² = 5117697853 is a prime.

It is not a weakly prime, because it can be changed into another prime (5117697853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2558848928 + 2558848929.

It is an arithmetic number, because the mean of its divisors is an integer number (2558848929).

Almost surely, 2^5117697857 is an apocalyptic number.

It is an amenable number.

5117697857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5117697857 is an equidigital number, since it uses as much as digits as its factorization.

5117697857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3704400, while the sum is 56.

The square root of 5117697857 is about 71538.0867580340. The cubic root of 5117697857 is about 1723.2893895099.

The spelling of 5117697857 in words is "five billion, one hundred seventeen million, six hundred ninety-seven thousand, eight hundred fifty-seven".