28225019216 has 40 divisors (see below), whose sum is σ = 57925756800. Its totient is φ = 13277095424.

The previous prime is 28225019177. The next prime is 28225019219. The reversal of 28225019216 is 61291052282.

It is a self number, because there is not a number n which added to its sum of digits gives 28225019216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28225019219) 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 in 7 ways as a sum of consecutive naturals, for example, 714905 + ... + 753351.

It is an arithmetic number, because the mean of its divisors is an integer number (1448143920).

Almost surely, 2^28225019216 is an apocalyptic number.

It is an amenable number.

28225019216 is an abundant number, since it is smaller than the sum of its proper divisors (29700737584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28225019216 is a wasteful number, since it uses less digits than its factorization.

28225019216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41171 (or 41165 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 28225019216 in words is "twenty-eight billion, two hundred twenty-five million, nineteen thousand, two hundred sixteen".