6768505178117 has 2 divisors, whose sum is σ = 6768505178118. Its totient is φ = 6768505178116.

The previous prime is 6768505178111. The next prime is 6768505178153. The reversal of 6768505178117 is 7118715058676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6479269884481 + 289235293636 = 2545441^2 + 537806^2 .

It is a cyclic number.

It is not a de Polignac number, because 6768505178117 - 2¹² = 6768505174021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6768505178117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6768505178111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3384252589058 + 3384252589059.

It is an arithmetic number, because the mean of its divisors is an integer number (3384252589059).

Almost surely, 2^{6768505178117} is an apocalyptic number.

It is an amenable number.

6768505178117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6768505178117 is an equidigital number, since it uses as much as digits as its factorization.

6768505178117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19756800, while the sum is 62.

The spelling of 6768505178117 in words is "six trillion, seven hundred sixty-eight billion, five hundred five million, one hundred seventy-eight thousand, one hundred seventeen".