6855208209577 has 64 divisors (see below), whose sum is σ = 9008028467200. Its totient is φ = 5065285155840.

The previous prime is 6855208209569. The next prime is 6855208209617. The reversal of 6855208209577 is 7759028025586.

It is not a de Polignac number, because 6855208209577 - 2³ = 6855208209569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6855208209517) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86149153 + ... + 86228689.

It is an arithmetic number, because the mean of its divisors is an integer number (140750444800).

Almost surely, 2^{6855208209577} is an apocalyptic number.

It is an amenable number.

6855208209577 is a deficient number, since it is larger than the sum of its proper divisors (2152820257623).

6855208209577 is a wasteful number, since it uses less digits than its factorization.

6855208209577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80286.

The product of its (nonzero) digits is 84672000, while the sum is 64.

The spelling of 6855208209577 in words is "six trillion, eight hundred fifty-five billion, two hundred eight million, two hundred nine thousand, five hundred seventy-seven".