19227845228 has 24 divisors (see below), whose sum is σ = 33916838592. Its totient is φ = 9537621264.

The previous prime is 19227845177. The next prime is 19227845237. The reversal of 19227845228 is 82254872291.

It is a super-2 number, since 2×19227845228² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219551 + ... + 294377.

It is an arithmetic number, because the mean of its divisors is an integer number (1413201608).

Almost surely, 2^19227845228 is an apocalyptic number.

It is an amenable number.

19227845228 is a deficient number, since it is larger than the sum of its proper divisors (14688993364).

19227845228 is a wasteful number, since it uses less digits than its factorization.

19227845228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75341 (or 75339 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The spelling of 19227845228 in words is "nineteen billion, two hundred twenty-seven million, eight hundred forty-five thousand, two hundred twenty-eight".