28080185233 has 2 divisors, whose sum is σ = 28080185234. Its totient is φ = 28080185232.

The previous prime is 28080185227. The next prime is 28080185249. The reversal of 28080185233 is 33258108082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19662489729 + 8417695504 = 140223^2 + 91748^2 .

It is a cyclic number.

It is not a de Polignac number, because 28080185233 - 2⁵ = 28080185201 is a prime.

It is not a weakly prime, because it can be changed into another prime (28080185213) 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, 14040092616 + 14040092617.

It is an arithmetic number, because the mean of its divisors is an integer number (14040092617).

Almost surely, 2^28080185233 is an apocalyptic number.

It is an amenable number.

28080185233 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080185233 is an equidigital number, since it uses as much as digits as its factorization.

28080185233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 28080185233 in words is "twenty-eight billion, eighty million, one hundred eighty-five thousand, two hundred thirty-three".