11711875687 has 2 divisors, whose sum is σ = 11711875688. Its totient is φ = 11711875686.

The previous prime is 11711875673. The next prime is 11711875699. The reversal of 11711875687 is 78657811711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11711875687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11711875627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5855937843 + 5855937844.

It is an arithmetic number, because the mean of its divisors is an integer number (5855937844).

Almost surely, 2^11711875687 is an apocalyptic number.

11711875687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11711875687 is an equidigital number, since it uses as much as digits as its factorization.

11711875687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 52.

The spelling of 11711875687 in words is "eleven billion, seven hundred eleven million, eight hundred seventy-five thousand, six hundred eighty-seven".