28225030808443 has 24 divisors (see below), whose sum is σ = 34338772765440. Its totient is φ = 23088305615760.

The previous prime is 28225030808417. The next prime is 28225030808461. The reversal of 28225030808443 is 34480803052282.

It is not a de Polignac number, because 28225030808443 - 2²¹ = 28225028711291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28225030808483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28029613 + ... + 29019118.

It is an arithmetic number, because the mean of its divisors is an integer number (1430782198560).

Almost surely, 2^{28225030808443} is an apocalyptic number.

28225030808443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28225030808443 is a deficient number, since it is larger than the sum of its proper divisors (6113741956997).

28225030808443 is a wasteful number, since it uses less digits than its factorization.

28225030808443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57049207 (or 57049200 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 49.

The spelling of 28225030808443 in words is "twenty-eight trillion, two hundred twenty-five billion, thirty million, eight hundred eight thousand, four hundred forty-three".