6864198717 has 4 divisors (see below), whose sum is σ = 9152264960. Its totient is φ = 4576132476.

The previous prime is 6864198713. The next prime is 6864198767. The reversal of 6864198717 is 7178914686.

It is a happy number.

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 not a de Polignac number, because 6864198717 - 2² = 6864198713 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 (6864198713) 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 3 ways as a sum of consecutive naturals, for example, 1144033117 + ... + 1144033122.

It is an arithmetic number, because the mean of its divisors is an integer number (2288066240).

Almost surely, 2^6864198717 is an apocalyptic number.

It is an amenable number.

6864198717 is a deficient number, since it is larger than the sum of its proper divisors (2288066243).

6864198717 is a wasteful number, since it uses less digits than its factorization.

6864198717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288066242.

The product of its digits is 4064256, while the sum is 57.

The square root of 6864198717 is about 82850.4599685482. The cubic root of 6864198717 is about 1900.4799080436.

The spelling of 6864198717 in words is "six billion, eight hundred sixty-four million, one hundred ninety-eight thousand, seven hundred seventeen".