8109172716 has 48 divisors (see below), whose sum is σ = 20380483200. Its totient is φ = 2501235072.

The previous prime is 8109172651. The next prime is 8109172723. The reversal of 8109172716 is 6172719018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403761 + ... + 423368.

It is an arithmetic number, because the mean of its divisors is an integer number (424593400).

Almost surely, 2^8109172716 is an apocalyptic number.

8109172716 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

8109172716 is an abundant number, since it is smaller than the sum of its proper divisors (12271310484).

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

8109172716 is a wasteful number, since it uses less digits than its factorization.

8109172716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827198 (or 827196 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 42.

The square root of 8109172716 is about 90050.9451144184. The cubic root of 8109172716 is about 2009.0566529476.

The spelling of 8109172716 in words is "eight billion, one hundred nine million, one hundred seventy-two thousand, seven hundred sixteen".