22028324872 has 16 divisors (see below), whose sum is σ = 43732704060. Its totient is φ = 10366270464.

The previous prime is 22028324867. The next prime is 22028324909. The reversal of 22028324872 is 27842382022.

It can be written as a sum of positive squares in 2 ways, for example, as 21858439716 + 169885156 = 147846^2 + 13034^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80986353 + ... + 80986624.

Almost surely, 2^22028324872 is an apocalyptic number.

It is an amenable number.

22028324872 is a deficient number, since it is larger than the sum of its proper divisors (21704379188).

22028324872 is a wasteful number, since it uses less digits than its factorization.

22028324872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161973000 (or 161972996 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 22028324872 in words is "twenty-two billion, twenty-eight million, three hundred twenty-four thousand, eight hundred seventy-two".