6858816911 has 8 divisors (see below), whose sum is σ = 6921532464. Its totient is φ = 6796258560.

The previous prime is 6858816907. The next prime is 6858816919. The reversal of 6858816911 is 1196188586.

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 6858816911 - 2² = 6858816907 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 (6858816919) 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, 49265 + ... + 127061.

It is an arithmetic number, because the mean of its divisors is an integer number (865191558).

Almost surely, 2^6858816911 is an apocalyptic number.

6858816911 is a deficient number, since it is larger than the sum of its proper divisors (62715553).

6858816911 is a wasteful number, since it uses less digits than its factorization.

6858816911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78601.

The product of its digits is 829440, while the sum is 53.

The square root of 6858816911 is about 82817.9745647042. The cubic root of 6858816911 is about 1899.9830941247.

The spelling of 6858816911 in words is "six billion, eight hundred fifty-eight million, eight hundred sixteen thousand, nine hundred eleven".