8045421443 has 2 divisors, whose sum is σ = 8045421444. Its totient is φ = 8045421442.

The previous prime is 8045421437. The next prime is 8045421463. The reversal of 8045421443 is 3441245408.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8045421443 - 2⁸ = 8045421187 is a prime.

It is not a weakly prime, because it can be changed into another prime (8045421463) 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, 4022710721 + 4022710722.

It is an arithmetic number, because the mean of its divisors is an integer number (4022710722).

Almost surely, 2^8045421443 is an apocalyptic number.

8045421443 is a deficient number, since it is larger than the sum of its proper divisors (1).

8045421443 is an equidigital number, since it uses as much as digits as its factorization.

8045421443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 8045421443 is about 89696.2732949368. The cubic root of 8045421443 is about 2003.7779791930. Note that the first 3 decimals are identical.

The spelling of 8045421443 in words is "eight billion, forty-five million, four hundred twenty-one thousand, four hundred forty-three".