11804837543 has 2 divisors, whose sum is σ = 11804837544. Its totient is φ = 11804837542.

The previous prime is 11804837537. The next prime is 11804837567. The reversal of 11804837543 is 34573840811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11804837543 - 2²⁰ = 11803788967 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11804837494 and 11804837503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11804837533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5902418771 + 5902418772.

It is an arithmetic number, because the mean of its divisors is an integer number (5902418772).

Almost surely, 2^11804837543 is an apocalyptic number.

11804837543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11804837543 is an equidigital number, since it uses as much as digits as its factorization.

11804837543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 11804837543 in words is "eleven billion, eight hundred four million, eight hundred thirty-seven thousand, five hundred forty-three".