28444394848 has 48 divisors (see below), whose sum is σ = 57957412464. Its totient is φ = 13732208640.

The previous prime is 28444394843. The next prime is 28444394903. The reversal of 28444394848 is 84849344482.

It is a junction number, because it is equal to n+sod(n) for n = 28444394792 and 28444394801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28444394843) 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, 15511 + ... + 239017.

It is an arithmetic number, because the mean of its divisors is an integer number (1207446093).

Almost surely, 2^28444394848 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 28444394848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28978706232).

28444394848 is an abundant number, since it is smaller than the sum of its proper divisors (29513017616).

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

28444394848 is a wasteful number, since it uses less digits than its factorization.

28444394848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223655 (or 223647 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 58.

The spelling of 28444394848 in words is "twenty-eight billion, four hundred forty-four million, three hundred ninety-four thousand, eight hundred forty-eight".