28484224818 has 64 divisors (see below), whose sum is σ = 67458597120. Its totient is φ = 7848271872.

The previous prime is 28484224817. The next prime is 28484224849. The reversal of 28484224818 is 81842248482.

It is a super-2 number, since 2×28484224818² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28484224817) 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 31 ways as a sum of consecutive naturals, for example, 94498 + ... + 256706.

It is an arithmetic number, because the mean of its divisors is an integer number (1054040580).

Almost surely, 2^28484224818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28484224818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33729298560).

28484224818 is an abundant number, since it is smaller than the sum of its proper divisors (38974372302).

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

28484224818 is a wasteful number, since it uses less digits than its factorization.

28484224818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162371.

The product of its digits is 2097152, while the sum is 51.

The spelling of 28484224818 in words is "twenty-eight billion, four hundred eighty-four million, two hundred twenty-four thousand, eight hundred eighteen".