19163828128 has 24 divisors (see below), whose sum is σ = 38531529792. Its totient is φ = 9378042816.

The previous prime is 19163828107. The next prime is 19163828141. The reversal of 19163828128 is 82182836191.

It is a happy 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, 6369450 + ... + 6372457.

It is an arithmetic number, because the mean of its divisors is an integer number (1605480408).

Almost surely, 2^19163828128 is an apocalyptic number.

It is an amenable number.

19163828128 is an abundant number, since it is smaller than the sum of its proper divisors (19367701664).

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

19163828128 is a wasteful number, since it uses less digits than its factorization.

19163828128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12741964 (or 12741956 counting only the distinct ones).

The product of its digits is 331776, while the sum is 49.

The spelling of 19163828128 in words is "nineteen billion, one hundred sixty-three million, eight hundred twenty-eight thousand, one hundred twenty-eight".