6808564417 has 4 divisors (see below), whose sum is σ = 6839096320. Its totient is φ = 6778032516.

The previous prime is 6808564403. The next prime is 6808564501. The reversal of 6808564417 is 7144658086.

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 6808564417 - 2⁷ = 6808564289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6808564717) 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, 15265617 + ... + 15266062.

It is an arithmetic number, because the mean of its divisors is an integer number (1709774080).

Almost surely, 2^6808564417 is an apocalyptic number.

It is an amenable number.

6808564417 is a deficient number, since it is larger than the sum of its proper divisors (30531903).

6808564417 is a wasteful number, since it uses less digits than its factorization.

6808564417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30531902.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 6808564417 is about 82514.0255774738. The cubic root of 6808564417 is about 1895.3315132565.

The spelling of 6808564417 in words is "six billion, eight hundred eight million, five hundred sixty-four thousand, four hundred seventeen".