28216424104 has 96 divisors (see below), whose sum is σ = 61190821440. Its totient is φ = 12093804800.

The previous prime is 28216424057. The next prime is 28216424113. The reversal of 28216424104 is 40142461282.

It is a self number, because there is not a number n which added to its sum of digits gives 28216424104.

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 23 ways as a sum of consecutive naturals, for example, 3300924 + ... + 3309460.

It is an arithmetic number, because the mean of its divisors is an integer number (637404390).

Almost surely, 2^28216424104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28216424104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30595410720).

28216424104 is an abundant number, since it is smaller than the sum of its proper divisors (32974397336).

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

28216424104 is a wasteful number, since it uses less digits than its factorization.

28216424104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

Adding to 28216424104 its reverse (40142461282), we get a palindrome (68358885386).

The spelling of 28216424104 in words is "twenty-eight billion, two hundred sixteen million, four hundred twenty-four thousand, one hundred four".