28286876089 has 2 divisors, whose sum is σ = 28286876090. Its totient is φ = 28286876088.

The previous prime is 28286876039. The next prime is 28286876119. The reversal of 28286876089 is 98067868282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28159524864 + 127351225 = 167808^2 + 11285^2 .

It is a cyclic number.

It is not a de Polignac number, because 28286876089 - 2⁷ = 28286875961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28286876089.

It is not a weakly prime, because it can be changed into another prime (28286876029) 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, 14143438044 + 14143438045.

It is an arithmetic number, because the mean of its divisors is an integer number (14143438045).

Almost surely, 2^28286876089 is an apocalyptic number.

It is an amenable number.

28286876089 is a deficient number, since it is larger than the sum of its proper divisors (1).

28286876089 is an equidigital number, since it uses as much as digits as its factorization.

28286876089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 28286876089 in words is "twenty-eight billion, two hundred eighty-six million, eight hundred seventy-six thousand, eighty-nine".