199864332289 has 8 divisors (see below), whose sum is σ = 200794106880. Its totient is φ = 198936108000.

The previous prime is 199864332287. The next prime is 199864332323. The reversal of 199864332289 is 982233468991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199864332289 - 2¹ = 199864332287 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 199864332289.

It is not an unprimeable number, because it can be changed into a prime (199864332287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128737 + ... + 645214.

It is an arithmetic number, because the mean of its divisors is an integer number (25099263360).

Almost surely, 2^199864332289 is an apocalyptic number.

It is an amenable number.

199864332289 is a deficient number, since it is larger than the sum of its proper divisors (929774591).

199864332289 is an equidigital number, since it uses as much as digits as its factorization.

199864332289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775151.

The product of its digits is 40310784, while the sum is 64.

The spelling of 199864332289 in words is "one hundred ninety-nine billion, eight hundred sixty-four million, three hundred thirty-two thousand, two hundred eighty-nine".