11577722227 has 4 divisors (see below), whose sum is σ = 11585056120. Its totient is φ = 11570388336.

The previous prime is 11577722203. The next prime is 11577722237. The reversal of 11577722227 is 72222777511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72222777511 = 43 ⋅1679599477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11577722227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11577722237) 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, 3664578 + ... + 3667735.

It is an arithmetic number, because the mean of its divisors is an integer number (2896264030).

Almost surely, 2^11577722227 is an apocalyptic number.

11577722227 is a deficient number, since it is larger than the sum of its proper divisors (7333893).

11577722227 is an equidigital number, since it uses as much as digits as its factorization.

11577722227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333892.

The product of its digits is 192080, while the sum is 43.

The spelling of 11577722227 in words is "eleven billion, five hundred seventy-seven million, seven hundred twenty-two thousand, two hundred twenty-seven".