19229349889 has 4 divisors (see below), whose sum is σ = 19230185920. Its totient is φ = 19228513860.

The previous prime is 19229349833. The next prime is 19229349917. The reversal of 19229349889 is 98894392291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98894392291 = 25343 ⋅3902237.

It is a cyclic number.

It is not a de Polignac number, because 19229349889 - 2²⁵ = 19195795457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19229349889.

It is not an unprimeable number, because it can be changed into a prime (19229349829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382509 + ... + 429850.

It is an arithmetic number, because the mean of its divisors is an integer number (4807546480).

Almost surely, 2^19229349889 is an apocalyptic number.

It is an amenable number.

19229349889 is a deficient number, since it is larger than the sum of its proper divisors (836031).

19229349889 is an equidigital number, since it uses as much as digits as its factorization.

19229349889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836030.

The product of its digits is 20155392, while the sum is 64.

The spelling of 19229349889 in words is "nineteen billion, two hundred twenty-nine million, three hundred forty-nine thousand, eight hundred eighty-nine".