8109722916 has 45 divisors (see below), whose sum is σ = 21204656011. Its totient is φ = 2702700648.

The previous prime is 8109722909. The next prime is 8109722917. The reversal of 8109722916 is 6192279018.

The square root of 8109722916 is 90054.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8109722917) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1618471 + ... + 1623473.

Almost surely, 2^8109722916 is an apocalyptic number.

8109722916 is the 90054-th square number.

It is an amenable number.

8109722916 is an abundant number, since it is smaller than the sum of its proper divisors (13094933095).

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

8109722916 is an frugal number, since it uses more digits than its factorization.

8109722916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022 (or 5008 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The cubic root of 8109722916 is about 2009.1020894761.

It can be divided in two parts, 8109 and 722916, that added together give a square (731025 = 855²).

The spelling of 8109722916 in words is "eight billion, one hundred nine million, seven hundred twenty-two thousand, nine hundred sixteen".