28366472226 has 16 divisors (see below), whose sum is σ = 57317821344. Its totient is φ = 9358011264.

The previous prime is 28366472191. The next prime is 28366472273. The reversal of 28366472226 is 62227466382.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24369240 + ... + 24370403.

It is an arithmetic number, because the mean of its divisors is an integer number (3582363834).

Almost surely, 2^28366472226 is an apocalyptic number.

28366472226 is an abundant number, since it is smaller than the sum of its proper divisors (28951349118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28366472226 is a wasteful number, since it uses less digits than its factorization.

28366472226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48739745.

The product of its digits is 2322432, while the sum is 48.

The spelling of 28366472226 in words is "twenty-eight billion, three hundred sixty-six million, four hundred seventy-two thousand, two hundred twenty-six".