11186441649 has 12 divisors (see below), whose sum is σ = 16162041012. Its totient is φ = 7455852000.

The previous prime is 11186441647. The next prime is 11186441663. The reversal of 11186441649 is 94614468111.

11186441649 is a `hidden beast` number, since 11 + 186 + 4 + 416 + 49 = 666.

11186441649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10607558049 + 578883600 = 102993^2 + 24060^2 .

It is not a de Polignac number, because 11186441649 - 2¹ = 11186441647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11186441647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107502 + ... + 184199.

It is an arithmetic number, because the mean of its divisors is an integer number (1346836751).

Almost surely, 2^11186441649 is an apocalyptic number.

It is an amenable number.

11186441649 is a deficient number, since it is larger than the sum of its proper divisors (4975599363).

11186441649 is a wasteful number, since it uses less digits than its factorization.

11186441649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295968 (or 295965 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The spelling of 11186441649 in words is "eleven billion, one hundred eighty-six million, four hundred forty-one thousand, six hundred forty-nine".