11678787711 has 8 divisors (see below), whose sum is σ = 17301907760. Its totient is φ = 7785858456.

The previous prime is 11678787643. The next prime is 11678787727. The reversal of 11678787711 is 11778787611.

11678787711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11678787711 - 2⁷ = 11678787583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11678787011) 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 7 ways as a sum of consecutive naturals, for example, 216273820 + ... + 216273873.

It is an arithmetic number, because the mean of its divisors is an integer number (2162738470).

Almost surely, 2^11678787711 is an apocalyptic number.

11678787711 is a deficient number, since it is larger than the sum of its proper divisors (5623120049).

11678787711 is an equidigital number, since it uses as much as digits as its factorization.

11678787711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432547702 (or 432547696 counting only the distinct ones).

The product of its digits is 921984, while the sum is 54.

It can be divided in two parts, 1167 and 8787711, that added together give a palindrome (8788878).

The spelling of 11678787711 in words is "eleven billion, six hundred seventy-eight million, seven hundred eighty-seven thousand, seven hundred eleven".