6855871713 has 16 divisors (see below), whose sum is σ = 9191237952. Its totient is φ = 4545576000.

The previous prime is 6855871709. The next prime is 6855871727. The reversal of 6855871713 is 3171785586.

It is not a de Polignac number, because 6855871713 - 2² = 6855871709 is a prime.

It is a super-2 number, since 2×6855871713² = 94005953890227108738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6855871733) 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, 1098943 + ... + 1105163.

It is an arithmetic number, because the mean of its divisors is an integer number (574452372).

Almost surely, 2^6855871713 is an apocalyptic number.

It is an amenable number.

6855871713 is a deficient number, since it is larger than the sum of its proper divisors (2335366239).

6855871713 is a wasteful number, since it uses less digits than its factorization.

6855871713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176.

The product of its digits is 1411200, while the sum is 51.

The square root of 6855871713 is about 82800.1915034017. The cubic root of 6855871713 is about 1899.7111022430.

The spelling of 6855871713 in words is "six billion, eight hundred fifty-five million, eight hundred seventy-one thousand, seven hundred thirteen".