8165428173 has 24 divisors (see below), whose sum is σ = 13483704000. Its totient is φ = 4664481984.

The previous prime is 8165428171. The next prime is 8165428259. The reversal of 8165428173 is 3718245618.

It is not a de Polignac number, because 8165428173 - 2¹ = 8165428171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8165428171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198498 + ... + 236076.

It is an arithmetic number, because the mean of its divisors is an integer number (561821000).

Almost surely, 2^8165428173 is an apocalyptic number.

It is an amenable number.

8165428173 is a deficient number, since it is larger than the sum of its proper divisors (5318275827).

8165428173 is a wasteful number, since it uses less digits than its factorization.

8165428173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41041 (or 41038 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 8165428173 is about 90362.7587726271. The cubic root of 8165428173 is about 2013.6917353826.

The spelling of 8165428173 in words is "eight billion, one hundred sixty-five million, four hundred twenty-eight thousand, one hundred seventy-three".