2317128563 has 4 divisors (see below), whose sum is σ = 2318985000. Its totient is φ = 2315272128.

The previous prime is 2317128557. The next prime is 2317128581. The reversal of 2317128563 is 3658217132.

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

It is a cyclic number.

It is not a de Polignac number, because 2317128563 - 2⁴ = 2317128547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2317128503) 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, 926345 + ... + 928842.

It is an arithmetic number, because the mean of its divisors is an integer number (579746250).

Almost surely, 2^2317128563 is an apocalyptic number.

2317128563 is a deficient number, since it is larger than the sum of its proper divisors (1856437).

2317128563 is a wasteful number, since it uses less digits than its factorization.

2317128563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856436.

The product of its digits is 60480, while the sum is 38.

The square root of 2317128563 is about 48136.5616034216. The cubic root of 2317128563 is about 1323.2748047652.

The spelling of 2317128563 in words is "two billion, three hundred seventeen million, one hundred twenty-eight thousand, five hundred sixty-three".