9318448139 has 48 divisors (see below), whose sum is σ = 12783538656. Its totient is φ = 6676992000.

The previous prime is 9318448133. The next prime is 9318448151.

9318448139 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9318448139 - 2¹⁶ = 9318382603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9318448133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1938539 + ... + 1943339.

It is an arithmetic number, because the mean of its divisors is an integer number (266323722).

Almost surely, 2^9318448139 is an apocalyptic number.

9318448139 is a deficient number, since it is larger than the sum of its proper divisors (3465090517).

9318448139 is a wasteful number, since it uses less digits than its factorization.

9318448139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116 (or 5109 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 9318448139 is about 96532.1093678161. The cubic root of 9318448139 is about 2104.3333150889. Note that the first 4 decimals are identical.

It can be divided in two parts, 93184 and 48139, that multiplied together give a square (4485784576 = 66976²).

The spelling of 9318448139 in words is "nine billion, three hundred eighteen million, four hundred forty-eight thousand, one hundred thirty-nine".