6855871712 has 48 divisors (see below), whose sum is σ = 14100936192. Its totient is φ = 3277349760.

The previous prime is 6855871709. The next prime is 6855871727. The reversal of 6855871712 is 2171785586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40703 + ... + 123969.

It is an arithmetic number, because the mean of its divisors is an integer number (293769504).

Almost surely, 2^6855871712 is an apocalyptic number.

6855871712 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6855871712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7050468096).

6855871712 is an abundant number, since it is smaller than the sum of its proper divisors (7245064480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6855871712 is a wasteful number, since it uses less digits than its factorization.

6855871712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83391 (or 83383 counting only the distinct ones).

The product of its digits is 940800, while the sum is 50.

The square root of 6855871712 is about 82800.1914973631. The cubic root of 6855871712 is about 1899.7111021506.

The spelling of 6855871712 in words is "six billion, eight hundred fifty-five million, eight hundred seventy-one thousand, seven hundred twelve".