6859999999 has 8 divisors (see below), whose sum is σ = 6889374000. Its totient is φ = 6830647296.

The previous prime is 6859999981. The next prime is 6860000003. The reversal of 6859999999 is 9999999586.

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

It is a cyclic number.

It is not a de Polignac number, because 6859999999 - 2²³ = 6851611391 is a prime.

It is a Duffinian number.

6859999999 is a modest number, since divided by 99999 gives 68599 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859999199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190377 + ... + 1196125.

It is an arithmetic number, because the mean of its divisors is an integer number (861171750).

Almost surely, 2^6859999999 is an apocalyptic number.

6859999999 is a deficient number, since it is larger than the sum of its proper divisors (29374001).

6859999999 is a wasteful number, since it uses less digits than its factorization.

6859999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10649.

The product of its digits is 1147912560, while the sum is 82.

The square root of 6859999999 is about 82825.1169573578. The cubic root of 6859999999 is about 1900.0923315241.

The spelling of 6859999999 in words is "six billion, eight hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".