19830718089 has 96 divisors (see below), whose sum is σ = 35901092864. Its totient is φ = 10269452160.

The previous prime is 19830718087. The next prime is 19830718097. The reversal of 19830718089 is 98081703891.

It is not a de Polignac number, because 19830718089 - 2¹ = 19830718087 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19830718081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28698234 + ... + 28698924.

Almost surely, 2^19830718089 is an apocalyptic number.

It is an amenable number.

19830718089 is a deficient number, since it is larger than the sum of its proper divisors (16070374775).

19830718089 is a wasteful number, since it uses less digits than its factorization.

19830718089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 19830718089 in words is "nineteen billion, eight hundred thirty million, seven hundred eighteen thousand, eighty-nine".