13803805543 has 8 divisors (see below), whose sum is σ = 15134371200. Its totient is φ = 12485852280.

The previous prime is 13803805531. The next prime is 13803805549. The reversal of 13803805543 is 34550830831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13803805543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13803805496 and 13803805505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13803805549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3150805 + ... + 3155182.

It is an arithmetic number, because the mean of its divisors is an integer number (1891796400).

Almost surely, 2^13803805543 is an apocalyptic number.

13803805543 is a deficient number, since it is larger than the sum of its proper divisors (1330565657).

13803805543 is a wasteful number, since it uses less digits than its factorization.

13803805543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306197.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 13803805543 in words is "thirteen billion, eight hundred three million, eight hundred five thousand, five hundred forty-three".