8256768761 has 2 divisors, whose sum is σ = 8256768762. Its totient is φ = 8256768760.

The previous prime is 8256768721. The next prime is 8256768809. The reversal of 8256768761 is 1678676528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8123597161 + 133171600 = 90131^2 + 11540^2 .

It is a cyclic number.

It is not a de Polignac number, because 8256768761 - 2⁶ = 8256768697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8256768697 and 8256768706.

It is not a weakly prime, because it can be changed into another prime (8256768701) 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, 4128384380 + 4128384381.

It is an arithmetic number, because the mean of its divisors is an integer number (4128384381).

Almost surely, 2^8256768761 is an apocalyptic number.

It is an amenable number.

8256768761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8256768761 is an equidigital number, since it uses as much as digits as its factorization.

8256768761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The square root of 8256768761 is about 90866.7637863262. The cubic root of 8256768761 is about 2021.1724691047.

The spelling of 8256768761 in words is "eight billion, two hundred fifty-six million, seven hundred sixty-eight thousand, seven hundred sixty-one".