18801347228 has 12 divisors (see below), whose sum is σ = 33111927912. Its totient is φ = 9340796400.

The previous prime is 18801347189. The next prime is 18801347239. The reversal of 18801347228 is 82274310881.

It is a congruent number.

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, 14968598 + ... + 14969853.

It is an arithmetic number, because the mean of its divisors is an integer number (2759327326).

Almost surely, 2^18801347228 is an apocalyptic number.

It is an amenable number.

18801347228 is a deficient number, since it is larger than the sum of its proper divisors (14310580684).

18801347228 is a wasteful number, since it uses less digits than its factorization.

18801347228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29938612 (or 29938610 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 18801347228 in words is "eighteen billion, eight hundred one million, three hundred forty-seven thousand, two hundred twenty-eight".