8066809885439 has 2 divisors, whose sum is σ = 8066809885440. Its totient is φ = 8066809885438.

The previous prime is 8066809885361. The next prime is 8066809885447. The reversal of 8066809885439 is 9345889086608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8066809885439 - 2¹⁶ = 8066809819903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8066809885339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4033404942719 + 4033404942720.

It is an arithmetic number, because the mean of its divisors is an integer number (4033404942720).

Almost surely, 2^{8066809885439} is an apocalyptic number.

8066809885439 is a deficient number, since it is larger than the sum of its proper divisors (1).

8066809885439 is an equidigital number, since it uses as much as digits as its factorization.

8066809885439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 716636160, while the sum is 74.

The spelling of 8066809885439 in words is "eight trillion, sixty-six billion, eight hundred nine million, eight hundred eighty-five thousand, four hundred thirty-nine".