8722404864 has 160 divisors (see below), whose sum is σ = 26518287840. Its totient is φ = 2828722176.

The previous prime is 8722404851. The next prime is 8722404871. The reversal of 8722404864 is 4684042278.

It is a super-2 number, since 2×8722404864² (a number of 21 digits) contains 22 as substring.

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, 502962 + ... + 520014.

It is an arithmetic number, because the mean of its divisors is an integer number (165739299).

Almost surely, 2^8722404864 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 8722404864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13259143920).

8722404864 is an abundant number, since it is smaller than the sum of its proper divisors (17795882976).

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

8722404864 is a wasteful number, since it uses less digits than its factorization.

8722404864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17117 (or 17095 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The square root of 8722404864 is about 93393.8159837149. The cubic root of 8722404864 is about 2058.4741319338.

The spelling of 8722404864 in words is "eight billion, seven hundred twenty-two million, four hundred four thousand, eight hundred sixty-four".