11791227479 has 4 divisors (see below), whose sum is σ = 12197821560. Its totient is φ = 11384633400.

The previous prime is 11791227457. The next prime is 11791227493. The reversal of 11791227479 is 97472219711.

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 11791227479 - 2²⁴ = 11774450263 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 (11791227439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203296997 + ... + 203297054.

It is an arithmetic number, because the mean of its divisors is an integer number (3049455390).

Almost surely, 2^11791227479 is an apocalyptic number.

11791227479 is a deficient number, since it is larger than the sum of its proper divisors (406594081).

11791227479 is an equidigital number, since it uses as much as digits as its factorization.

11791227479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406594080.

The product of its digits is 444528, while the sum is 50.

The spelling of 11791227479 in words is "eleven billion, seven hundred ninety-one million, two hundred twenty-seven thousand, four hundred seventy-nine".