6871679687 has 2 divisors, whose sum is σ = 6871679688. Its totient is φ = 6871679686.

The previous prime is 6871679657. The next prime is 6871679713. The reversal of 6871679687 is 7869761786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6871679687 - 2⁶ = 6871679623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6871679657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3435839843 + 3435839844.

It is an arithmetic number, because the mean of its divisors is an integer number (3435839844).

Almost surely, 2^6871679687 is an apocalyptic number.

6871679687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6871679687 is an equidigital number, since it uses as much as digits as its factorization.

6871679687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 65.

The square root of 6871679687 is about 82895.5951001017. The cubic root of 6871679687 is about 1901.1700721796.

The spelling of 6871679687 in words is "six billion, eight hundred seventy-one million, six hundred seventy-nine thousand, six hundred eighty-seven".