28247441472 has 112 divisors (see below), whose sum is σ = 83113676800. Its totient is φ = 9407715840.

The previous prime is 28247441461. The next prime is 28247441477. The reversal of 28247441472 is 27414474282.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28247441477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2203722 + ... + 2216502.

It is an arithmetic number, because the mean of its divisors is an integer number (742086400).

Almost surely, 2^28247441472 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 28247441472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41556838400).

28247441472 is an abundant number, since it is smaller than the sum of its proper divisors (54866235328).

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

28247441472 is a wasteful number, since it uses less digits than its factorization.

28247441472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081 (or 14065 counting only the distinct ones).

The product of its digits is 802816, while the sum is 45.

The spelling of 28247441472 in words is "twenty-eight billion, two hundred forty-seven million, four hundred forty-one thousand, four hundred seventy-two".