8722443138 has 8 divisors (see below), whose sum is σ = 17444886288. Its totient is φ = 2907481044.

The previous prime is 8722443133. The next prime is 8722443199. The reversal of 8722443138 is 8313442278.

It is a happy number.

8722443138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

8722443138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8722443138.

It is not an unprimeable number, because it can be changed into a prime (8722443133) 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 3 ways as a sum of consecutive naturals, for example, 726870256 + ... + 726870267.

It is an arithmetic number, because the mean of its divisors is an integer number (2180610786).

Almost surely, 2^8722443138 is an apocalyptic number.

8722443138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8722443138 is a wasteful number, since it uses less digits than its factorization.

8722443138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453740528.

The product of its digits is 258048, while the sum is 42.

The square root of 8722443138 is about 93394.0208899906. The cubic root of 8722443138 is about 2058.4771427978.

The spelling of 8722443138 in words is "eight billion, seven hundred twenty-two million, four hundred forty-three thousand, one hundred thirty-eight".