9318423913 has 4 divisors (see below), whose sum is σ = 9326678740. Its totient is φ = 9310169088.

The previous prime is 9318423901. The next prime is 9318423929. The reversal of 9318423913 is 3193248139.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 839145024 + 8479278889 = 28968^2 + 92083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9318423913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9318423913.

It is not an unprimeable number, because it can be changed into a prime (9319423913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4125720 + ... + 4127977.

It is an arithmetic number, because the mean of its divisors is an integer number (2331669685).

Almost surely, 2^9318423913 is an apocalyptic number.

It is an amenable number.

9318423913 is a deficient number, since it is larger than the sum of its proper divisors (8254827).

9318423913 is a wasteful number, since it uses less digits than its factorization.

9318423913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8254826.

The product of its digits is 139968, while the sum is 43.

The square root of 9318423913 is about 96531.9838861711. The cubic root of 9318423913 is about 2104.3314914798.

The spelling of 9318423913 in words is "nine billion, three hundred eighteen million, four hundred twenty-three thousand, nine hundred thirteen".