28133173226 has 8 divisors (see below), whose sum is σ = 42219986400. Its totient is φ = 14059844428.

The previous prime is 28133173193. The next prime is 28133173273. The reversal of 28133173226 is 62237133182.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28133173226.

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, 3365876 + ... + 3374223.

It is an arithmetic number, because the mean of its divisors is an integer number (5277498300).

Almost surely, 2^28133173226 is an apocalyptic number.

28133173226 is a deficient number, since it is larger than the sum of its proper divisors (14086813174).

28133173226 is a wasteful number, since it uses less digits than its factorization.

28133173226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742188.

The product of its digits is 72576, while the sum is 38.

The spelling of 28133173226 in words is "twenty-eight billion, one hundred thirty-three million, one hundred seventy-three thousand, two hundred twenty-six".