199989337571 has 8 divisors (see below), whose sum is σ = 210519214080. Its totient is φ = 189459873288.

The previous prime is 199989337567. The next prime is 199989337589. The reversal of 199989337571 is 175733989991.

199989337571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 199989337571 - 2² = 199989337567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199989337495 and 199989337504.

It is not an unprimeable number, because it can be changed into a prime (199989397571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1718390 + ... + 1831076.

It is an arithmetic number, because the mean of its divisors is an integer number (26314901760).

Almost surely, 2^199989337571 is an apocalyptic number.

199989337571 is a deficient number, since it is larger than the sum of its proper divisors (10529876509).

199989337571 is a wasteful number, since it uses less digits than its factorization.

199989337571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206113.

The product of its digits is 115736040, while the sum is 71.

The spelling of 199989337571 in words is "one hundred ninety-nine billion, nine hundred eighty-nine million, three hundred thirty-seven thousand, five hundred seventy-one".