28859316559 has 4 divisors (see below), whose sum is σ = 28859668216. Its totient is φ = 28858964904.

The previous prime is 28859316557. The next prime is 28859316583. The reversal of 28859316559 is 95561395882.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28859316559 - 2¹ = 28859316557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28859316497 and 28859316506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28859316557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19897 + ... + 241069.

It is an arithmetic number, because the mean of its divisors is an integer number (7214917054).

Almost surely, 2^28859316559 is an apocalyptic number.

28859316559 is a deficient number, since it is larger than the sum of its proper divisors (351657).

28859316559 is a wasteful number, since it uses less digits than its factorization.

28859316559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351656.

The product of its digits is 23328000, while the sum is 61.

The spelling of 28859316559 in words is "twenty-eight billion, eight hundred fifty-nine million, three hundred sixteen thousand, five hundred fifty-nine".