11243415447 has 24 divisors (see below), whose sum is σ = 17823012480. Its totient is φ = 6773377680.

The previous prime is 11243415439. The next prime is 11243415461. The reversal of 11243415447 is 74451434211.

It is not a de Polignac number, because 11243415447 - 2³ = 11243415439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243415437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323497 + ... + 356562.

It is an arithmetic number, because the mean of its divisors is an integer number (742625520).

Almost surely, 2^11243415447 is an apocalyptic number.

11243415447 is a deficient number, since it is larger than the sum of its proper divisors (6579597033).

11243415447 is a wasteful number, since it uses less digits than its factorization.

11243415447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680243 (or 680240 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

Adding to 11243415447 its reverse (74451434211), we get a palindrome (85694849658).

The spelling of 11243415447 in words is "eleven billion, two hundred forty-three million, four hundred fifteen thousand, four hundred forty-seven".