8171845722852 has 384 divisors, whose sum is σ = 24256292659200. Its totient is φ = 2087534592000.

The previous prime is 8171845722827. The next prime is 8171845722857. The reversal of 8171845722852 is 2582275481718.

It is not an unprimeable number, because it can be changed into a prime (8171845722857) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1702110852 + ... + 1702115652.

It is an arithmetic number, because the mean of its divisors is an integer number (63167428800).

Almost surely, 2^{8171845722852} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8171845722852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12128146329600).

8171845722852 is an abundant number, since it is smaller than the sum of its proper divisors (16084446936348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8171845722852 is a wasteful number, since it uses less digits than its factorization.

8171845722852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5465 counting only the distinct ones).

The product of its digits is 20070400, while the sum is 60.

The spelling of 8171845722852 in words is "eight trillion, one hundred seventy-one billion, eight hundred forty-five million, seven hundred twenty-two thousand, eight hundred fifty-two".