11554544243 has 16 divisors (see below), whose sum is σ = 12708938880. Its totient is φ = 10417627200.

The previous prime is 11554544231. The next prime is 11554544303. The reversal of 11554544243 is 34244545511.

11554544243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11554544243 - 2⁶ = 11554544179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11554544197 and 11554544206.

It is not an unprimeable number, because it can be changed into a prime (11554544213) 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 15 ways as a sum of consecutive naturals, for example, 1942568 + ... + 1948506.

It is an arithmetic number, because the mean of its divisors is an integer number (794308680).

Almost surely, 2^11554544243 is an apocalyptic number.

11554544243 is a deficient number, since it is larger than the sum of its proper divisors (1154394637).

11554544243 is a wasteful number, since it uses less digits than its factorization.

11554544243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378.

The product of its digits is 192000, while the sum is 38.

The spelling of 11554544243 in words is "eleven billion, five hundred fifty-four million, five hundred forty-four thousand, two hundred forty-three".