2168190194 has 8 divisors (see below), whose sum is σ = 3252763008. Its totient is φ = 1083935860.

The previous prime is 2168190181. The next prime is 2168190203. The reversal of 2168190194 is 4910918612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61802 + ... + 90309.

It is an arithmetic number, because the mean of its divisors is an integer number (406595376).

Almost surely, 2^2168190194 is an apocalyptic number.

2168190194 is a deficient number, since it is larger than the sum of its proper divisors (1084572814).

2168190194 is a wasteful number, since it uses less digits than its factorization.

2168190194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159240.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 2168190194 is about 46563.8292454562. The cubic root of 2168190194 is about 1294.2925716844.

The spelling of 2168190194 in words is "two billion, one hundred sixty-eight million, one hundred ninety thousand, one hundred ninety-four".