28208546111 has 2 divisors, whose sum is σ = 28208546112. Its totient is φ = 28208546110.

The previous prime is 28208546087. The next prime is 28208546203. The reversal of 28208546111 is 11164580282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28208546111 - 2³⁰ = 27134804287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28208546911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14104273055 + 14104273056.

It is an arithmetic number, because the mean of its divisors is an integer number (14104273056).

Almost surely, 2^28208546111 is an apocalyptic number.

28208546111 is a deficient number, since it is larger than the sum of its proper divisors (1).

28208546111 is an equidigital number, since it uses as much as digits as its factorization.

28208546111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 38.

The spelling of 28208546111 in words is "twenty-eight billion, two hundred eight million, five hundred forty-six thousand, one hundred eleven".