199879310289 has 8 divisors (see below), whose sum is σ = 273005887392. Its totient is φ = 130002803360.

The previous prime is 199879310287. The next prime is 199879310311. The reversal of 199879310289 is 982013978991.

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 199879310289 - 2¹ = 199879310287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199879310287) 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, 812517399 + ... + 812517644.

It is an arithmetic number, because the mean of its divisors is an integer number (34125735924).

Almost surely, 2^199879310289 is an apocalyptic number.

It is an amenable number.

199879310289 is a deficient number, since it is larger than the sum of its proper divisors (73126577103).

199879310289 is a wasteful number, since it uses less digits than its factorization.

199879310289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625035087.

The product of its (nonzero) digits is 17635968, while the sum is 66.

The spelling of 199879310289 in words is "one hundred ninety-nine billion, eight hundred seventy-nine million, three hundred ten thousand, two hundred eighty-nine".