11801179179 has 6 divisors (see below), whose sum is σ = 17046147716. Its totient is φ = 7867452780.

The previous prime is 11801179171. The next prime is 11801179213. The reversal of 11801179179 is 97197110811.

It is a happy number.

It is not a de Polignac number, because 11801179179 - 2³ = 11801179171 is a prime.

It is a super-2 number, since 2×11801179179² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11801179171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655621057 + ... + 655621074.

Almost surely, 2^11801179179 is an apocalyptic number.

11801179179 is a deficient number, since it is larger than the sum of its proper divisors (5244968537).

11801179179 is a wasteful number, since it uses less digits than its factorization.

11801179179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311242137 (or 1311242134 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 45.

The spelling of 11801179179 in words is "eleven billion, eight hundred one million, one hundred seventy-nine thousand, one hundred seventy-nine".