6685256853 has 24 divisors (see below), whose sum is σ = 10678661760. Its totient is φ = 3996164160.

The previous prime is 6685256821. The next prime is 6685256861. The reversal of 6685256853 is 3586525866.

6685256853 is a `hidden beast` number, since 6 + 6 + 8 + 525 + 68 + 53 = 666.

It is not a de Polignac number, because 6685256853 - 2⁵ = 6685256821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6685256853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685256653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455293 + ... + 469746.

It is an arithmetic number, because the mean of its divisors is an integer number (444944240).

Almost surely, 2^6685256853 is an apocalyptic number.

It is an amenable number.

6685256853 is a deficient number, since it is larger than the sum of its proper divisors (3993404907).

6685256853 is a wasteful number, since it uses less digits than its factorization.

6685256853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925129 (or 925126 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The square root of 6685256853 is about 81763.4200177561. The cubic root of 6685256853 is about 1883.8198377020.

The spelling of 6685256853 in words is "six billion, six hundred eighty-five million, two hundred fifty-six thousand, eight hundred fifty-three".