28689333359 has 4 divisors (see below), whose sum is σ = 28707596760. Its totient is φ = 28671069960.

The previous prime is 28689333341. The next prime is 28689333367. The reversal of 28689333359 is 95333398682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28689333359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28689333298 and 28689333307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28689339359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9129344 + ... + 9132485.

It is an arithmetic number, because the mean of its divisors is an integer number (7176899190).

Almost surely, 2^28689333359 is an apocalyptic number.

28689333359 is a deficient number, since it is larger than the sum of its proper divisors (18263401).

28689333359 is a wasteful number, since it uses less digits than its factorization.

28689333359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18263400.

The product of its digits is 25194240, while the sum is 59.

The spelling of 28689333359 in words is "twenty-eight billion, six hundred eighty-nine million, three hundred thirty-three thousand, three hundred fifty-nine".