28349239226 has 16 divisors (see below), whose sum is σ = 53016759360. Its totient is φ = 11045158080.

The previous prime is 28349239223. The next prime is 28349239231. The reversal of 28349239226 is 62293294382.

It is not an unprimeable number, because it can be changed into a prime (28349239223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92042831 + ... + 92043138.

It is an arithmetic number, because the mean of its divisors is an integer number (3313547460).

Almost surely, 2^28349239226 is an apocalyptic number.

28349239226 is a deficient number, since it is larger than the sum of its proper divisors (24667520134).

28349239226 is a wasteful number, since it uses less digits than its factorization.

28349239226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184085989.

The product of its digits is 2239488, while the sum is 50.

The spelling of 28349239226 in words is "twenty-eight billion, three hundred forty-nine million, two hundred thirty-nine thousand, two hundred twenty-six".