6855979089 has 16 divisors (see below), whose sum is σ = 9201024000. Its totient is φ = 4540823760.

The previous prime is 6855979087. The next prime is 6855979103. The reversal of 6855979089 is 9809795586.

6855979089 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6855979089 - 2¹ = 6855979087 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6855979087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1751044 + ... + 1754954.

It is an arithmetic number, because the mean of its divisors is an integer number (575064000).

Almost surely, 2^6855979089 is an apocalyptic number.

It is an amenable number.

6855979089 is a deficient number, since it is larger than the sum of its proper divisors (2345044911).

6855979089 is a wasteful number, since it uses less digits than its factorization.

6855979089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580.

The product of its (nonzero) digits is 48988800, while the sum is 66.

The square root of 6855979089 is about 82800.8399051604. The cubic root of 6855979089 is about 1899.7210198884.

The spelling of 6855979089 in words is "six billion, eight hundred fifty-five million, nine hundred seventy-nine thousand, eighty-nine".