808080008861 has 2 divisors, whose sum is σ = 808080008862. Its totient is φ = 808080008860.

The previous prime is 808080008849. The next prime is 808080008929. The reversal of 808080008861 is 168800080808.

808080008861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408774816025 + 399305192836 = 639355^2 + 631906^2 .

It is a cyclic number.

It is not a de Polignac number, because 808080008861 - 2⁶ = 808080008797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808080008761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404040004430 + 404040004431.

It is an arithmetic number, because the mean of its divisors is an integer number (404040004431).

Almost surely, 2^808080008861 is an apocalyptic number.

It is an amenable number.

808080008861 is a deficient number, since it is larger than the sum of its proper divisors (1).

808080008861 is an equidigital number, since it uses as much as digits as its factorization.

808080008861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196608, while the sum is 47.

The spelling of 808080008861 in words is "eight hundred eight billion, eighty million, eight thousand, eight hundred sixty-one".