68096845561 has 2 divisors, whose sum is σ = 68096845562. Its totient is φ = 68096845560.

The previous prime is 68096845559. The next prime is 68096845643. The reversal of 68096845561 is 16554869086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56399125225 + 11697720336 = 237485^2 + 108156^2 .

It is a cyclic number.

It is not a de Polignac number, because 68096845561 - 2¹ = 68096845559 is a prime.

Together with 68096845559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68096845496 and 68096845505.

It is not a weakly prime, because it can be changed into another prime (68096885561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34048422780 + 34048422781.

It is an arithmetic number, because the mean of its divisors is an integer number (34048422781).

Almost surely, 2^68096845561 is an apocalyptic number.

It is an amenable number.

68096845561 is a deficient number, since it is larger than the sum of its proper divisors (1).

68096845561 is an equidigital number, since it uses as much as digits as its factorization.

68096845561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 68096845561 in words is "sixty-eight billion, ninety-six million, eight hundred forty-five thousand, five hundred sixty-one".