6864198715 has 48 divisors (see below), whose sum is σ = 9896221440. Its totient is φ = 4546713600.

The previous prime is 6864198713. The next prime is 6864198767. The reversal of 6864198715 is 5178914686.

It is not a de Polignac number, because 6864198715 - 2¹ = 6864198713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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 47 ways as a sum of consecutive naturals, for example, 308071 + ... + 329599.

It is an arithmetic number, because the mean of its divisors is an integer number (206171280).

Almost surely, 2^6864198715 is an apocalyptic number.

6864198715 is a deficient number, since it is larger than the sum of its proper divisors (3032022725).

6864198715 is a wasteful number, since it uses less digits than its factorization.

6864198715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21604 (or 21593 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 6864198715 is about 82850.4599564782. The cubic root of 6864198715 is about 1900.4799078591.

The spelling of 6864198715 in words is "six billion, eight hundred sixty-four million, one hundred ninety-eight thousand, seven hundred fifteen".