19228445826 has 32 divisors (see below), whose sum is σ = 40175751168. Its totient is φ = 6127987920.

The previous prime is 19228445813. The next prime is 19228445849. The reversal of 19228445826 is 62854482291.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607326 + ... + 638201.

It is an arithmetic number, because the mean of its divisors is an integer number (1255492224).

Almost surely, 2^19228445826 is an apocalyptic number.

19228445826 is an abundant number, since it is smaller than the sum of its proper divisors (20947305342).

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

19228445826 is a wasteful number, since it uses less digits than its factorization.

19228445826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245646.

The product of its digits is 2211840, while the sum is 51.

The spelling of 19228445826 in words is "nineteen billion, two hundred twenty-eight million, four hundred forty-five thousand, eight hundred twenty-six".