8266722912 has 144 divisors (see below), whose sum is σ = 27374124960. Its totient is φ = 2317326336.

The previous prime is 8266722899. The next prime is 8266722917. The reversal of 8266722912 is 2192276628.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266722917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68164 + ... + 145532.

It is an arithmetic number, because the mean of its divisors is an integer number (190098090).

Almost surely, 2^8266722912 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 8266722912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13687062480).

8266722912 is an abundant number, since it is smaller than the sum of its proper divisors (19107402048).

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

8266722912 is a wasteful number, since it uses less digits than its factorization.

8266722912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77445 (or 77434 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8266722912 is about 90921.5206208079. The cubic root of 8266722912 is about 2021.9843676790.

The spelling of 8266722912 in words is "eight billion, two hundred sixty-six million, seven hundred twenty-two thousand, nine hundred twelve".