11543185682 has 18 divisors (see below), whose sum is σ = 20143537173. Its totient is φ = 4946623752.

The previous prime is 11543185681. The next prime is 11543185711. The reversal of 11543185682 is 28658134511.

It can be written as a sum of positive squares in 2 ways, for example, as 11525954881 + 17230801 = 107359^2 + 4151^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=75971.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543185681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1058168 + ... + 1069020.

Almost surely, 2^11543185682 is an apocalyptic number.

11543185682 is a deficient number, since it is larger than the sum of its proper divisors (8600351491).

11543185682 is an frugal number, since it uses more digits than its factorization.

11543185682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21722 (or 10862 counting only the distinct ones).

The product of its digits is 230400, while the sum is 44.

The spelling of 11543185682 in words is "eleven billion, five hundred forty-three million, one hundred eighty-five thousand, six hundred eighty-two".