768668094497 has 2 divisors, whose sum is σ = 768668094498. Its totient is φ = 768668094496.

The previous prime is 768668094479. The next prime is 768668094511. The reversal of 768668094497 is 794490866867.

Together with previous prime (768668094479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560954562961 + 207713531536 = 748969^2 + 455756^2 .

It is a cyclic number.

It is not a de Polignac number, because 768668094497 - 2²⁰ = 768667045921 is a prime.

It is not a weakly prime, because it can be changed into another prime (768668090497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384334047248 + 384334047249.

It is an arithmetic number, because the mean of its divisors is an integer number (384334047249).

Almost surely, 2^768668094497 is an apocalyptic number.

It is an amenable number.

768668094497 is a deficient number, since it is larger than the sum of its proper divisors (1).

768668094497 is an equidigital number, since it uses as much as digits as its factorization.

768668094497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 877879296, while the sum is 74.

The spelling of 768668094497 in words is "seven hundred sixty-eight billion, six hundred sixty-eight million, ninety-four thousand, four hundred ninety-seven".