5820344865 has 24 divisors (see below), whose sum is σ = 10111930920. Its totient is φ = 3097004544.

The previous prime is 5820344821. The next prime is 5820344899. The reversal of 5820344865 is 5684430285.

5820344865 is a `hidden beast` number, since 582 + 0 + 3 + 4 + 4 + 8 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1096209 + 5819248656 = 1047^2 + 76284^2 .

It is not a de Polignac number, because 5820344865 - 2⁶ = 5820344801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5820344865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129870 + ... + 168839.

It is an arithmetic number, because the mean of its divisors is an integer number (421330455).

Almost surely, 2^5820344865 is an apocalyptic number.

It is an amenable number.

5820344865 is a deficient number, since it is larger than the sum of its proper divisors (4291586055).

5820344865 is a wasteful number, since it uses less digits than its factorization.

5820344865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299153 (or 299150 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The square root of 5820344865 is about 76291.1847135696. The cubic root of 5820344865 is about 1798.8001123646.

The spelling of 5820344865 in words is "five billion, eight hundred twenty million, three hundred forty-four thousand, eight hundred sixty-five".