8351071872 has 128 divisors (see below), whose sum is σ = 26060771520. Its totient is φ = 2335948800.

The previous prime is 8351071867. The next prime is 8351071879. The reversal of 8351071872 is 2781701538.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×8351071872² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8351071879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21129 + ... + 130952.

Almost surely, 2^8351071872 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 8351071872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13030385760).

8351071872 is an abundant number, since it is smaller than the sum of its proper divisors (17709699648).

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

8351071872 is a wasteful number, since it uses less digits than its factorization.

8351071872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152122 (or 152110 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 8351071872 is about 91384.1992469158. The cubic root of 8351071872 is about 2028.8381707069.

The spelling of 8351071872 in words is "eight billion, three hundred fifty-one million, seventy-one thousand, eight hundred seventy-two".