11444553549 has 24 divisors (see below), whose sum is σ = 19421062752. Its totient is φ = 6402546720.

The previous prime is 11444553541. The next prime is 11444553553. The reversal of 11444553549 is 94535544411.

11444553549 is a `hidden beast` number, since 1 + 1 + 4 + 44 + 553 + 54 + 9 = 666.

It is not a de Polignac number, because 11444553549 - 2³ = 11444553541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444553541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4444927 + ... + 4447500.

It is an arithmetic number, because the mean of its divisors is an integer number (809210948).

Almost surely, 2^11444553549 is an apocalyptic number.

It is an amenable number.

11444553549 is a deficient number, since it is larger than the sum of its proper divisors (7976509203).

11444553549 is a wasteful number, since it uses less digits than its factorization.

11444553549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892457 (or 8892454 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 11444553549 in words is "eleven billion, four hundred forty-four million, five hundred fifty-three thousand, five hundred forty-nine".