19889609282 has 16 divisors (see below), whose sum is σ = 30296851200. Its totient is φ = 9791050080.

The previous prime is 19889609251. The next prime is 19889609287. The reversal of 19889609282 is 28290698891.

It is not an unprimeable number, because it can be changed into a prime (19889609287) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4694 + ... + 199502.

It is an arithmetic number, because the mean of its divisors is an integer number (1893553200).

Almost surely, 2^19889609282 is an apocalyptic number.

19889609282 is a deficient number, since it is larger than the sum of its proper divisors (10407241918).

19889609282 is a wasteful number, since it uses less digits than its factorization.

19889609282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195601.

The product of its (nonzero) digits is 8957952, while the sum is 62.

The spelling of 19889609282 in words is "nineteen billion, eight hundred eighty-nine million, six hundred nine thousand, two hundred eighty-two".