189494609017 has 8 divisors (see below), whose sum is σ = 216627759936. Its totient is φ = 162377081232.

The previous prime is 189494609009. The next prime is 189494609033. The reversal of 189494609017 is 710906494981.

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 189494609017 - 2³ = 189494609009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189494609617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879778 + ... + 3928315.

It is an arithmetic number, because the mean of its divisors is an integer number (27078469992).

Almost surely, 2^189494609017 is an apocalyptic number.

It is an amenable number.

189494609017 is a deficient number, since it is larger than the sum of its proper divisors (27133150919).

189494609017 is an equidigital number, since it uses as much as digits as its factorization.

189494609017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7811567.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 189494609017 in words is "one hundred eighty-nine billion, four hundred ninety-four million, six hundred nine thousand, seventeen".