6859871766609 has 8 divisors (see below), whose sum is σ = 9227438128992. Its totient is φ = 4532776624320.

The previous prime is 6859871766593. The next prime is 6859871766619. The reversal of 6859871766609 is 9066671789586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6859871766609 - 2⁴ = 6859871766593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6859871766619) 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 7 ways as a sum of consecutive naturals, for example, 10117804627 + ... + 10117805304.

It is an arithmetic number, because the mean of its divisors is an integer number (1153429766124).

Almost surely, 2^{6859871766609} is an apocalyptic number.

It is an amenable number.

6859871766609 is a deficient number, since it is larger than the sum of its proper divisors (2367566362383).

6859871766609 is a wasteful number, since it uses less digits than its factorization.

6859871766609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20235610047.

The product of its (nonzero) digits is 1646023680, while the sum is 78.

The spelling of 6859871766609 in words is "six trillion, eight hundred fifty-nine billion, eight hundred seventy-one million, seven hundred sixty-six thousand, six hundred nine".