28285105235 has 24 divisors (see below), whose sum is σ = 35226700704. Its totient is φ = 21798564480.

The previous prime is 28285105201. The next prime is 28285105237. The reversal of 28285105235 is 53250158282.

It is not a de Polignac number, because 28285105235 - 2⁶ = 28285105171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28285105192 and 28285105201.

It is not an unprimeable number, because it can be changed into a prime (28285105237) 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 in 23 ways as a sum of consecutive naturals, for example, 653930 + ... + 695840.

It is an arithmetic number, because the mean of its divisors is an integer number (1467779196).

Almost surely, 2^28285105235 is an apocalyptic number.

28285105235 is a deficient number, since it is larger than the sum of its proper divisors (6941595469).

28285105235 is an equidigital number, since it uses as much as digits as its factorization.

28285105235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42075 (or 42032 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 28285105235 in words is "twenty-eight billion, two hundred eighty-five million, one hundred five thousand, two hundred thirty-five".