80404043543 has 2 divisors, whose sum is σ = 80404043544. Its totient is φ = 80404043542.

The previous prime is 80404043519. The next prime is 80404043549. The reversal of 80404043543 is 34534040408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80404043543 - 2²² = 80399849239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80404043549) 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 as a sum of consecutive naturals, namely, 40202021771 + 40202021772.

It is an arithmetic number, because the mean of its divisors is an integer number (40202021772).

Almost surely, 2^80404043543 is an apocalyptic number.

80404043543 is a deficient number, since it is larger than the sum of its proper divisors (1).

80404043543 is an equidigital number, since it uses as much as digits as its factorization.

80404043543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 80404043543 in words is "eighty billion, four hundred four million, forty-three thousand, five hundred forty-three".