6681014687 has 4 divisors (see below), whose sum is σ = 6681221400. Its totient is φ = 6680807976.

The previous prime is 6681014663. The next prime is 6681014689. The reversal of 6681014687 is 7864101866.

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

It is a cyclic number.

It is not a de Polignac number, because 6681014687 - 2²² = 6676820383 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681014689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43208 + ... + 123405.

It is an arithmetic number, because the mean of its divisors is an integer number (1670305350).

Almost surely, 2^6681014687 is an apocalyptic number.

6681014687 is a deficient number, since it is larger than the sum of its proper divisors (206713).

6681014687 is a wasteful number, since it uses less digits than its factorization.

6681014687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206712.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 6681014687 is about 81737.4741902391. The cubic root of 6681014687 is about 1883.4212906911.

The spelling of 6681014687 in words is "six billion, six hundred eighty-one million, fourteen thousand, six hundred eighty-seven".