6868916804641 has 2 divisors, whose sum is σ = 6868916804642. Its totient is φ = 6868916804640.

The previous prime is 6868916804627. The next prime is 6868916804683. The reversal of 6868916804641 is 1464086198686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6055556326416 + 813360478225 = 2460804^2 + 901865^2 .

It is a cyclic number.

It is not a de Polignac number, because 6868916804641 - 2⁴¹ = 4669893549089 is a prime.

It is not a weakly prime, because it can be changed into another prime (6868916801641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3434458402320 + 3434458402321.

It is an arithmetic number, because the mean of its divisors is an integer number (3434458402321).

Almost surely, 2^{6868916804641} is an apocalyptic number.

It is an amenable number.

6868916804641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6868916804641 is an equidigital number, since it uses as much as digits as its factorization.

6868916804641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 6868916804641 in words is "six trillion, eight hundred sixty-eight billion, nine hundred sixteen million, eight hundred four thousand, six hundred forty-one".