6896835680681 has 4 divisors (see below), whose sum is σ = 6897053134164. Its totient is φ = 6896618227200.

The previous prime is 6896835680627. The next prime is 6896835680743. The reversal of 6896835680681 is 1860865386986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1163248531600 + 5733587149081 = 1078540^2 + 2394491^2 .

It is a cyclic number.

It is not a de Polignac number, because 6896835680681 - 2²⁶ = 6896768571817 is a prime.

It is a super-2 number, since 2×6896835680681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6896835680599 and 6896835680608.

It is not an unprimeable number, because it can be changed into a prime (6896835680611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108679160 + ... + 108742601.

It is an arithmetic number, because the mean of its divisors is an integer number (1724263283541).

Almost surely, 2^{6896835680681} is an apocalyptic number.

It is an amenable number.

6896835680681 is a deficient number, since it is larger than the sum of its proper divisors (217453483).

6896835680681 is a wasteful number, since it uses less digits than its factorization.

6896835680681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217453482.

The product of its (nonzero) digits is 716636160, while the sum is 74.

The spelling of 6896835680681 in words is "six trillion, eight hundred ninety-six billion, eight hundred thirty-five million, six hundred eighty thousand, six hundred eighty-one".