11188129979 has 8 divisors (see below), whose sum is σ = 12342628032. Its totient is φ = 10075613760.

The previous prime is 11188129961. The next prime is 11188129991. The reversal of 11188129979 is 97992188111.

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

It is a cyclic number.

It is not a de Polignac number, because 11188129979 - 2²⁰ = 11187081403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11188129949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10494899 + ... + 10495964.

It is an arithmetic number, because the mean of its divisors is an integer number (1542828504).

Almost surely, 2^11188129979 is an apocalyptic number.

11188129979 is a deficient number, since it is larger than the sum of its proper divisors (1154498053).

11188129979 is a wasteful number, since it uses less digits than its factorization.

11188129979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20990917.

The product of its digits is 653184, while the sum is 56.

The spelling of 11188129979 in words is "eleven billion, one hundred eighty-eight million, one hundred twenty-nine thousand, nine hundred seventy-nine".