42816338843 has 2 divisors, whose sum is σ = 42816338844. Its totient is φ = 42816338842.

The previous prime is 42816338819. The next prime is 42816338857. The reversal of 42816338843 is 34883361824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42816338843 - 2²⁰ = 42815290267 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42816338791 and 42816338800.

It is not a weakly prime, because it can be changed into another prime (42816338813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21408169421 + 21408169422.

It is an arithmetic number, because the mean of its divisors is an integer number (21408169422).

Almost surely, 2^42816338843 is an apocalyptic number.

42816338843 is a deficient number, since it is larger than the sum of its proper divisors (1).

42816338843 is an equidigital number, since it uses as much as digits as its factorization.

42816338843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2654208, while the sum is 50.

The spelling of 42816338843 in words is "forty-two billion, eight hundred sixteen million, three hundred thirty-eight thousand, eight hundred forty-three".