11579277117 has 4 divisors (see below), whose sum is σ = 15439036160. Its totient is φ = 7719518076.

The previous prime is 11579277107. The next prime is 11579277137. The reversal of 11579277117 is 71177297511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11579277117 - 2⁶ = 11579277053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11579277107) 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, 1929879517 + ... + 1929879522.

It is an arithmetic number, because the mean of its divisors is an integer number (3859759040).

Almost surely, 2^11579277117 is an apocalyptic number.

It is an amenable number.

11579277117 is a deficient number, since it is larger than the sum of its proper divisors (3859759043).

11579277117 is an equidigital number, since it uses as much as digits as its factorization.

11579277117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859759042.

The product of its digits is 216090, while the sum is 48.

The spelling of 11579277117 in words is "eleven billion, five hundred seventy-nine million, two hundred seventy-seven thousand, one hundred seventeen".