11772223682 has 18 divisors (see below), whose sum is σ = 18762320043. Its totient is φ = 5538642432.

The previous prime is 11772223679. The next prime is 11772223691. The reversal of 11772223682 is 28632227711.

It can be written as a sum of positive squares in 5 ways, for example, as 1140345361 + 10631878321 = 33769^2 + 103111^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=76721.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2606258 + ... + 2610770.

Almost surely, 2^11772223682 is an apocalyptic number.

11772223682 is a deficient number, since it is larger than the sum of its proper divisors (6990096361).

11772223682 is an frugal number, since it uses more digits than its factorization.

11772223682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062 (or 4532 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The spelling of 11772223682 in words is "eleven billion, seven hundred seventy-two million, two hundred twenty-three thousand, six hundred eighty-two".