5685612409 has 3 divisors (see below), whose sum is σ = 5685687813. Its totient is φ = 5685537006.

The previous prime is 5685612391. The next prime is 5685612433. The reversal of 5685612409 is 9042165865.

The square root of 5685612409 is 75403.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 5685612409 - 2⁷ = 5685612281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5685612509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 37702 + ... + 113104.

It is an arithmetic number, because the mean of its divisors is an integer number (1895229271).

Almost surely, 2^5685612409 is an apocalyptic number.

5685612409 is the 75403-rd square number.

5685612409 is the 37702-nd centered octagonal number.

It is an amenable number.

5685612409 is a deficient number, since it is larger than the sum of its proper divisors (75404).

5685612409 is an frugal number, since it uses more digits than its factorization.

5685612409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150806 (or 75403 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The cubic root of 5685612409 is about 1784.8117515491.

The spelling of 5685612409 in words is "five billion, six hundred eighty-five million, six hundred twelve thousand, four hundred nine".