6808757617 has 2 divisors, whose sum is σ = 6808757618. Its totient is φ = 6808757616.

The previous prime is 6808757609. The next prime is 6808757647. The reversal of 6808757617 is 7167578086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4595619681 + 2213137936 = 67791^2 + 47044^2 .

It is a cyclic number.

It is not a de Polignac number, because 6808757617 - 2³ = 6808757609 is a prime.

It is not a weakly prime, because it can be changed into another prime (6808757647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3404378808 + 3404378809.

It is an arithmetic number, because the mean of its divisors is an integer number (3404378809).

Almost surely, 2^6808757617 is an apocalyptic number.

It is an amenable number.

6808757617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6808757617 is an equidigital number, since it uses as much as digits as its factorization.

6808757617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3951360, while the sum is 55.

The square root of 6808757617 is about 82515.1962792309. The cubic root of 6808757617 is about 1895.3494404123.

The spelling of 6808757617 in words is "six billion, eight hundred eight million, seven hundred fifty-seven thousand, six hundred seventeen".