9318818013 has 4 divisors (see below), whose sum is σ = 12425090688. Its totient is φ = 6212545340.

The previous prime is 9318818009. The next prime is 9318818021. The reversal of 9318818013 is 3108188139.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9318818013 - 2² = 9318818009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9318818063) 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, 1553136333 + ... + 1553136338.

It is an arithmetic number, because the mean of its divisors is an integer number (3106272672).

Almost surely, 2^9318818013 is an apocalyptic number.

It is an amenable number.

9318818013 is a deficient number, since it is larger than the sum of its proper divisors (3106272675).

9318818013 is a wasteful number, since it uses less digits than its factorization.

9318818013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106272674.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 9318818013 is about 96534.0251569362. The cubic root of 9318818013 is about 2104.3611569167.

The spelling of 9318818013 in words is "nine billion, three hundred eighteen million, eight hundred eighteen thousand, thirteen".