8143381072 has 80 divisors (see below), whose sum is σ = 17538163200. Its totient is φ = 3645480960.

The previous prime is 8143381039. The next prime is 8143381093. The reversal of 8143381072 is 2701833418.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489304 + ... + 505672.

It is an arithmetic number, because the mean of its divisors is an integer number (219227040).

Almost surely, 2^8143381072 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 8143381072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8769081600).

8143381072 is an abundant number, since it is smaller than the sum of its proper divisors (9394782128).

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

8143381072 is a wasteful number, since it uses less digits than its factorization.

8143381072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16484 (or 16478 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 8143381072 is about 90240.6841286124. The cubic root of 8143381072 is about 2011.8777426382.

The spelling of 8143381072 in words is "eight billion, one hundred forty-three million, three hundred eighty-one thousand, seventy-two".