11686778888786 has 8 divisors (see below), whose sum is σ = 17530442045424. Its totient is φ = 5843298206980.

The previous prime is 11686778888783. The next prime is 11686778888797. The reversal of 11686778888786 is 68788887768611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11686778888783) 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, 45458480 + ... + 45714843.

It is an arithmetic number, because the mean of its divisors is an integer number (2191305255678).

Almost surely, 2^{11686778888786} is an apocalyptic number.

11686778888786 is a deficient number, since it is larger than the sum of its proper divisors (5843663156638).

11686778888786 is an equidigital number, since it uses as much as digits as its factorization.

11686778888786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91237416.

The product of its digits is 19421724672, while the sum is 89.

The spelling of 11686778888786 in words is "eleven trillion, six hundred eighty-six billion, seven hundred seventy-eight million, eight hundred eighty-eight thousand, seven hundred eighty-six".