28804846225 has 12 divisors (see below), whose sum is σ = 36589181580. Its totient is φ = 22481830400.

The previous prime is 28804846201. The next prime is 28804846261. The reversal of 28804846225 is 52264840882.

It can be written as a sum of positive squares in 6 ways, for example, as 8943863184 + 19860983041 = 94572^2 + 140929^2 .

It is not a de Polignac number, because 28804846225 - 2⁷ = 28804846097 is a prime.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 14050120 + ... + 14052169.

It is an arithmetic number, because the mean of its divisors is an integer number (3049098465).

Almost surely, 2^28804846225 is an apocalyptic number.

28804846225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28804846225 is a deficient number, since it is larger than the sum of its proper divisors (7784335355).

28804846225 is a wasteful number, since it uses less digits than its factorization.

28804846225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102340 (or 28102335 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 49.

The spelling of 28804846225 in words is "twenty-eight billion, eight hundred four million, eight hundred forty-six thousand, two hundred twenty-five".