170943442189 has 8 divisors (see below), whose sum is σ = 184251245472. Its totient is φ = 157658254320.

The previous prime is 170943442177. The next prime is 170943442199. The reversal of 170943442189 is 981244349071.

It is a happy number.

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 170943442189 - 2⁹ = 170943441677 is a prime.

It is a super-2 number, since 2×170943442189² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170943442169) 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, 5638147 + ... + 5668384.

It is an arithmetic number, because the mean of its divisors is an integer number (23031405684).

Almost surely, 2^170943442189 is an apocalyptic number.

It is an amenable number.

170943442189 is a deficient number, since it is larger than the sum of its proper divisors (13307803283).

170943442189 is a wasteful number, since it uses less digits than its factorization.

170943442189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11307707.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 170943442189 in words is "one hundred seventy billion, nine hundred forty-three million, four hundred forty-two thousand, one hundred eighty-nine".