68844764841287 has 2 divisors, whose sum is σ = 68844764841288. Its totient is φ = 68844764841286.

The previous prime is 68844764841271. The next prime is 68844764841289. The reversal of 68844764841287 is 78214846744886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68844764841287 - 2⁴ = 68844764841271 is a prime.

Together with 68844764841289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68844764841289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34422382420643 + 34422382420644.

It is an arithmetic number, because the mean of its divisors is an integer number (34422382420644).

Almost surely, 2^{68844764841287} is an apocalyptic number.

68844764841287 is a deficient number, since it is larger than the sum of its proper divisors (1).

68844764841287 is an equidigital number, since it uses as much as digits as its factorization.

68844764841287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3699376128, while the sum is 77.

The spelling of 68844764841287 in words is "sixty-eight trillion, eight hundred forty-four billion, seven hundred sixty-four million, eight hundred forty-one thousand, two hundred eighty-seven".