8979316557 has 4 divisors (see below), whose sum is σ = 11972422080. Its totient is φ = 5986211036.

The previous prime is 8979316529. The next prime is 8979316573. The reversal of 8979316557 is 7556139798.

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 8979316557 - 2¹⁰ = 8979315533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8979316557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8979316517) 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, 1496552757 + ... + 1496552762.

It is an arithmetic number, because the mean of its divisors is an integer number (2993105520).

Almost surely, 2^8979316557 is an apocalyptic number.

It is an amenable number.

8979316557 is a deficient number, since it is larger than the sum of its proper divisors (2993105523).

8979316557 is a wasteful number, since it uses less digits than its factorization.

8979316557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993105522.

The product of its digits is 14288400, while the sum is 60.

The square root of 8979316557 is about 94759.2557853849. The cubic root of 8979316557 is about 2078.4891454416.

The spelling of 8979316557 in words is "eight billion, nine hundred seventy-nine million, three hundred sixteen thousand, five hundred fifty-seven".