68968482766849 has 2 divisors, whose sum is σ = 68968482766850. Its totient is φ = 68968482766848.

The previous prime is 68968482766831. The next prime is 68968482766873. The reversal of 68968482766849 is 94866728486986.

68968482766849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63003985625025 + 5964497141824 = 7937505^2 + 2442232^2 .

It is a cyclic number.

It is not a de Polignac number, because 68968482766849 - 2³⁷ = 68831043813377 is a prime.

It is a super-2 number, since 2×68968482766849² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68968482766889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34484241383424 + 34484241383425.

It is an arithmetic number, because the mean of its divisors is an integer number (34484241383425).

Almost surely, 2^{68968482766849} is an apocalyptic number.

It is an amenable number.

68968482766849 is a deficient number, since it is larger than the sum of its proper divisors (1).

68968482766849 is an equidigital number, since it uses as much as digits as its factorization.

68968482766849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96315899904, while the sum is 91.

The spelling of 68968482766849 in words is "sixty-eight trillion, nine hundred sixty-eight billion, four hundred eighty-two million, seven hundred sixty-six thousand, eight hundred forty-nine".