28274449228 has 6 divisors (see below), whose sum is σ = 49480286156. Its totient is φ = 14137224612.

The previous prime is 28274449213. The next prime is 28274449237. The reversal of 28274449228 is 82294447282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3534306150 + ... + 3534306157.

Almost surely, 2^28274449228 is an apocalyptic number.

It is an amenable number.

28274449228 is a deficient number, since it is larger than the sum of its proper divisors (21205836928).

28274449228 is a wasteful number, since it uses less digits than its factorization.

28274449228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7068612311 (or 7068612309 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 52.

The spelling of 28274449228 in words is "twenty-eight billion, two hundred seventy-four million, four hundred forty-nine thousand, two hundred twenty-eight".