28055884867 has 2 divisors, whose sum is σ = 28055884868. Its totient is φ = 28055884866.

The previous prime is 28055884807. The next prime is 28055884921. The reversal of 28055884867 is 76848855082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28055884867 - 2⁷ = 28055884739 is a prime.

It is not a weakly prime, because it can be changed into another prime (28055884807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14027942433 + 14027942434.

It is an arithmetic number, because the mean of its divisors is an integer number (14027942434).

Almost surely, 2^28055884867 is an apocalyptic number.

28055884867 is a deficient number, since it is larger than the sum of its proper divisors (1).

28055884867 is an equidigital number, since it uses as much as digits as its factorization.

28055884867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34406400, while the sum is 61.

The spelling of 28055884867 in words is "twenty-eight billion, fifty-five million, eight hundred eighty-four thousand, eight hundred sixty-seven".