11686979712 has 32 divisors (see below), whose sum is σ = 31043540880. Its totient is φ = 3895659776.

The previous prime is 11686979683. The next prime is 11686979713. The reversal of 11686979712 is 21797968611.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (11686979713) 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, 15217038 + ... + 15217805.

Almost surely, 2^11686979712 is an apocalyptic number.

11686979712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11686979712 is an abundant number, since it is smaller than the sum of its proper divisors (19356561168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11686979712 is an equidigital number, since it uses as much as digits as its factorization.

11686979712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30434860 (or 30434848 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 57.

The spelling of 11686979712 in words is "eleven billion, six hundred eighty-six million, nine hundred seventy-nine thousand, seven hundred twelve".