5682812821 has 4 divisors (see below), whose sum is σ = 6494643232. Its totient is φ = 4870982412.

The previous prime is 5682812813. The next prime is 5682812851. The reversal of 5682812821 is 1282182865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5682812821 - 2³ = 5682812813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5682812851) 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, 405915195 + ... + 405915208.

It is an arithmetic number, because the mean of its divisors is an integer number (1623660808).

Almost surely, 2^5682812821 is an apocalyptic number.

It is an amenable number.

5682812821 is a deficient number, since it is larger than the sum of its proper divisors (811830411).

5682812821 is an equidigital number, since it uses as much as digits as its factorization.

5682812821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811830410.

The product of its digits is 122880, while the sum is 43.

The square root of 5682812821 is about 75384.4335456598. The cubic root of 5682812821 is about 1784.5187571417.

The spelling of 5682812821 in words is "five billion, six hundred eighty-two million, eight hundred twelve thousand, eight hundred twenty-one".