5821812509 has 8 divisors (see below), whose sum is σ = 6083742912. Its totient is φ = 5560616160.

The previous prime is 5821812499. The next prime is 5821812533. The reversal of 5821812509 is 9052181285.

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

It is not a de Polignac number, because 5821812509 - 2⁸ = 5821812253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5821812559) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 167264 + ... + 199049.

It is an arithmetic number, because the mean of its divisors is an integer number (760467864).

Almost surely, 2^5821812509 is an apocalyptic number.

It is an amenable number.

5821812509 is a deficient number, since it is larger than the sum of its proper divisors (261930403).

5821812509 is a wasteful number, since it uses less digits than its factorization.

5821812509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367027.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 5821812509 is about 76300.8028070478. The cubic root of 5821812509 is about 1798.9512933447.

The spelling of 5821812509 in words is "five billion, eight hundred twenty-one million, eight hundred twelve thousand, five hundred nine".