28259361191 has 2 divisors, whose sum is σ = 28259361192. Its totient is φ = 28259361190.

The previous prime is 28259361149. The next prime is 28259361209. The reversal of 28259361191 is 19116395282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28259361191 - 2²⁶ = 28192252327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28259361101) 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, 14129680595 + 14129680596.

It is an arithmetic number, because the mean of its divisors is an integer number (14129680596).

Almost surely, 2^28259361191 is an apocalyptic number.

28259361191 is a deficient number, since it is larger than the sum of its proper divisors (1).

28259361191 is an equidigital number, since it uses as much as digits as its factorization.

28259361191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 47.

The spelling of 28259361191 in words is "twenty-eight billion, two hundred fifty-nine million, three hundred sixty-one thousand, one hundred ninety-one".