68112097807697 has 2 divisors, whose sum is σ = 68112097807698. Its totient is φ = 68112097807696.

The previous prime is 68112097807673. The next prime is 68112097807727. The reversal of 68112097807697 is 79670879021186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67995213138241 + 116884669456 = 8245921^2 + 341884^2 .

It is a cyclic number.

It is not a de Polignac number, because 68112097807697 - 2¹⁴ = 68112097791313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68112097807697.

It is not a weakly prime, because it can be changed into another prime (68112097807597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34056048903848 + 34056048903849.

It is an arithmetic number, because the mean of its divisors is an integer number (34056048903849).

Almost surely, 2^{68112097807697} is an apocalyptic number.

It is an amenable number.

68112097807697 is a deficient number, since it is larger than the sum of its proper divisors (1).

68112097807697 is an equidigital number, since it uses as much as digits as its factorization.

68112097807697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128024064, while the sum is 71.

The spelling of 68112097807697 in words is "sixty-eight trillion, one hundred twelve billion, ninety-seven million, eight hundred seven thousand, six hundred ninety-seven".