8315580913 has 4 divisors (see below), whose sum is σ = 8315763568. Its totient is φ = 8315398260.

The previous prime is 8315580887. The next prime is 8315580941. The reversal of 8315580913 is 3190855138.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3190855138 = 2 ⋅1595427569.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8315580913 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 8315580913.

It is not an unprimeable number, because it can be changed into a prime (8315580113) 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, 38158 + ... + 134488.

It is an arithmetic number, because the mean of its divisors is an integer number (2078940892).

Almost surely, 2^8315580913 is an apocalyptic number.

It is an amenable number.

8315580913 is a deficient number, since it is larger than the sum of its proper divisors (182655).

8315580913 is an equidigital number, since it uses as much as digits as its factorization.

8315580913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182654.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 8315580913 is about 91189.8070674568. The cubic root of 8315580913 is about 2025.9599909364.

The spelling of 8315580913 in words is "eight billion, three hundred fifteen million, five hundred eighty thousand, nine hundred thirteen".