199998330305249 has 8 divisors (see below), whose sum is σ = 229938200112768. Its totient is φ = 170400630438720.

The previous prime is 199998330305239. The next prime is 199998330305359. The reversal of 199998330305249 is 942503033899991.

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 199998330305249 - 2³⁶ = 199929610828513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199998330305209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85542483992 + ... + 85542486329.

It is an arithmetic number, because the mean of its divisors is an integer number (28742275014096).

Almost surely, 2^{199998330305249} is an apocalyptic number.

It is an amenable number.

199998330305249 is a deficient number, since it is larger than the sum of its proper divisors (29939869807519).

199998330305249 is a wasteful number, since it uses less digits than its factorization.

199998330305249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171084970495.

The product of its (nonzero) digits is 510183360, while the sum is 74.

The spelling of 199998330305249 in words is "one hundred ninety-nine trillion, nine hundred ninety-eight billion, three hundred thirty million, three hundred five thousand, two hundred forty-nine".