28084011959 has 2 divisors, whose sum is σ = 28084011960. Its totient is φ = 28084011958.

The previous prime is 28084011953. The next prime is 28084011971. The reversal of 28084011959 is 95911048082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28084011959 - 2²⁰ = 28082963383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28084011953) 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, 14042005979 + 14042005980.

It is an arithmetic number, because the mean of its divisors is an integer number (14042005980).

Almost surely, 2^28084011959 is an apocalyptic number.

28084011959 is a deficient number, since it is larger than the sum of its proper divisors (1).

28084011959 is an equidigital number, since it uses as much as digits as its factorization.

28084011959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 28084011959 in words is "twenty-eight billion, eighty-four million, eleven thousand, nine hundred fifty-nine".