6853152180681 has 18 divisors (see below), whose sum is σ = 10048949053962. Its totient is φ = 4500577524960.

The previous prime is 6853152180649. The next prime is 6853152180683. The reversal of 6853152180681 is 1860812513586.

6853152180681 is a `hidden beast` number, since 6 + 8 + 5 + 31 + 521 + 8 + 0 + 6 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6785816601600 + 67335579081 = 2604960^2 + 259491^2 .

It is not a de Polignac number, because 6853152180681 - 2⁵ = 6853152180649 is a prime.

It is a super-2 number, since 2×6853152180681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6853152180683) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84773740 + ... + 84854541.

Almost surely, 2^{6853152180681} is an apocalyptic number.

It is an amenable number.

6853152180681 is a deficient number, since it is larger than the sum of its proper divisors (3195796873281).

6853152180681 is a wasteful number, since it uses less digits than its factorization.

6853152180681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169628421 (or 169628351 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 6853152180681 in words is "six trillion, eight hundred fifty-three billion, one hundred fifty-two million, one hundred eighty thousand, six hundred eighty-one".