28684503226 has 8 divisors (see below), whose sum is σ = 43838580564. Its totient is φ = 14071643040.

The previous prime is 28684503203. The next prime is 28684503241. The reversal of 28684503226 is 62230548682.

It is a happy number.

It is a Cunningham number, because it is equal to 169365²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 28684503225 + 1 = 169365^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135304155 + ... + 135304366.

Almost surely, 2^28684503226 is an apocalyptic number.

28684503226 is a deficient number, since it is larger than the sum of its proper divisors (15154077338).

28684503226 is a wasteful number, since it uses less digits than its factorization.

28684503226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270608576.

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 28684503226 in words is "twenty-eight billion, six hundred eighty-four million, five hundred three thousand, two hundred twenty-six".