11866487179 has 4 divisors (see below), whose sum is σ = 12249277120. Its totient is φ = 11483697240.

The previous prime is 11866487173. The next prime is 11866487219. The reversal of 11866487179 is 97178466811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11866487179 - 2⁵ = 11866487147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11866487173) 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, 191394924 + ... + 191394985.

It is an arithmetic number, because the mean of its divisors is an integer number (3062319280).

Almost surely, 2^11866487179 is an apocalyptic number.

11866487179 is a deficient number, since it is larger than the sum of its proper divisors (382789941).

11866487179 is an equidigital number, since it uses as much as digits as its factorization.

11866487179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382789940.

The product of its digits is 4064256, while the sum is 58.

The spelling of 11866487179 in words is "eleven billion, eight hundred sixty-six million, four hundred eighty-seven thousand, one hundred seventy-nine".