6758561617 has 2 divisors, whose sum is σ = 6758561618. Its totient is φ = 6758561616.

The previous prime is 6758561603. The next prime is 6758561629. The reversal of 6758561617 is 7161658576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5321848401 + 1436713216 = 72951^2 + 37904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6758561617 is a prime.

It is not a weakly prime, because it can be changed into another prime (6758561657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3379280808 + 3379280809.

It is an arithmetic number, because the mean of its divisors is an integer number (3379280809).

Almost surely, 2^6758561617 is an apocalyptic number.

It is an amenable number.

6758561617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6758561617 is an equidigital number, since it uses as much as digits as its factorization.

6758561617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 52.

The square root of 6758561617 is about 82210.4714558918. The cubic root of 6758561617 is about 1890.6802714354.

The spelling of 6758561617 in words is "six billion, seven hundred fifty-eight million, five hundred sixty-one thousand, six hundred seventeen".