18013805000543 has 8 divisors (see below), whose sum is σ = 19652647378896. Its totient is φ = 16375166579200.

The previous prime is 18013805000519. The next prime is 18013805000623. The reversal of 18013805000543 is 34500050831081.

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

It is not a de Polignac number, because 18013805000543 - 2³⁸ = 17738927093599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18013805000497 and 18013805000506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013805080543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50804546 + ... + 51157887.

It is an arithmetic number, because the mean of its divisors is an integer number (2456580922362).

Almost surely, 2^{18013805000543} is an apocalyptic number.

18013805000543 is a deficient number, since it is larger than the sum of its proper divisors (1638842378353).

18013805000543 is a wasteful number, since it uses less digits than its factorization.

18013805000543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101978505.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 18013805000543 in words is "eighteen trillion, thirteen billion, eight hundred five million, five hundred forty-three", and thus it is an aban number.