8313581009 has 8 divisors (see below), whose sum is σ = 8807333760. Its totient is φ = 7820352576.

The previous prime is 8313580997. The next prime is 8313581021. The reversal of 8313581009 is 9001853138.

It is an interprime number because it is at equal distance from previous prime (8313580997) and next prime (8313581021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8313581009 - 2¹⁶ = 8313515473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8313581039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98189 + ... + 162074.

It is an arithmetic number, because the mean of its divisors is an integer number (1100916720).

Almost surely, 2^8313581009 is an apocalyptic number.

It is an amenable number.

8313581009 is a deficient number, since it is larger than the sum of its proper divisors (493752751).

8313581009 is a wasteful number, since it uses less digits than its factorization.

8313581009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262159.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 8313581009 is about 91178.8407965357. The cubic root of 8313581009 is about 2025.7975629036.

The spelling of 8313581009 in words is "eight billion, three hundred thirteen million, five hundred eighty-one thousand, nine".