28225466227 has 32 divisors (see below), whose sum is σ = 33187968000. Its totient is φ = 23994238464.

The previous prime is 28225466201. The next prime is 28225466233. The reversal of 28225466227 is 72266452282.

It is not a de Polignac number, because 28225466227 - 2¹⁵ = 28225433459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28225466827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42830424 + ... + 42831082.

It is an arithmetic number, because the mean of its divisors is an integer number (1037124000).

Almost surely, 2^28225466227 is an apocalyptic number.

28225466227 is a deficient number, since it is larger than the sum of its proper divisors (4962501773).

28225466227 is an equidigital number, since it uses as much as digits as its factorization.

28225466227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1506 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 46.

The spelling of 28225466227 in words is "twenty-eight billion, two hundred twenty-five million, four hundred sixty-six thousand, two hundred twenty-seven".