28443159338 has 16 divisors (see below), whose sum is σ = 47198894400. Its totient is φ = 12746613600.

The previous prime is 28443159331. The next prime is 28443159343. The reversal of 28443159338 is 83395134482.

It is not an unprimeable number, because it can be changed into a prime (28443159331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9103163 + ... + 9106286.

It is an arithmetic number, because the mean of its divisors is an integer number (2949930900).

Almost surely, 2^28443159338 is an apocalyptic number.

28443159338 is a deficient number, since it is larger than the sum of its proper divisors (18755735062).

28443159338 is a wasteful number, since it uses less digits than its factorization.

28443159338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209533.

The product of its digits is 2488320, while the sum is 50.

It can be divided in two parts, 28443 and 159338, that added together give a palindrome (187781).

The spelling of 28443159338 in words is "twenty-eight billion, four hundred forty-three million, one hundred fifty-nine thousand, three hundred thirty-eight".