199696489195 has 12 divisors (see below), whose sum is σ = 278759997504. Its totient is φ = 136934735280.

The previous prime is 199696489189. The next prime is 199696489199. The reversal of 199696489195 is 591984696991.

It is not a de Polignac number, because 199696489195 - 2²¹ = 199694392043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199696489199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407543611 + ... + 407544100.

It is an arithmetic number, because the mean of its divisors is an integer number (23229999792).

Almost surely, 2^199696489195 is an apocalyptic number.

199696489195 is a deficient number, since it is larger than the sum of its proper divisors (79063508309).

199696489195 is an equidigital number, since it uses as much as digits as its factorization.

199696489195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815087730 (or 815087723 counting only the distinct ones).

The product of its digits is 340122240, while the sum is 76.

The spelling of 199696489195 in words is "one hundred ninety-nine billion, six hundred ninety-six million, four hundred eighty-nine thousand, one hundred ninety-five".