8194169405 has 16 divisors (see below), whose sum is σ = 10864088064. Its totient is φ = 5901477120.

The previous prime is 8194169383. The next prime is 8194169407. The reversal of 8194169405 is 5049614918.

It is not a de Polignac number, because 8194169405 - 2⁸ = 8194169149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8194169405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8194169407) 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 15 ways as a sum of consecutive naturals, for example, 2093741 + ... + 2097650.

It is an arithmetic number, because the mean of its divisors is an integer number (679005504).

Almost surely, 2^8194169405 is an apocalyptic number.

8194169405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8194169405 is a deficient number, since it is larger than the sum of its proper divisors (2669918659).

8194169405 is a wasteful number, since it uses less digits than its factorization.

8194169405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191436.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 8194169405 is about 90521.6515812654. The cubic root of 8194169405 is about 2016.0516119793.

The spelling of 8194169405 in words is "eight billion, one hundred ninety-four million, one hundred sixty-nine thousand, four hundred five".