64573443043 has 2 divisors, whose sum is σ = 64573443044. Its totient is φ = 64573443042.

The previous prime is 64573443041. The next prime is 64573443091. The reversal of 64573443043 is 34034437546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64573443043 - 2¹ = 64573443041 is a prime.

Together with 64573443041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64573443041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32286721521 + 32286721522.

It is an arithmetic number, because the mean of its divisors is an integer number (32286721522).

Almost surely, 2^64573443043 is an apocalyptic number.

64573443043 is a deficient number, since it is larger than the sum of its proper divisors (1).

64573443043 is an equidigital number, since it uses as much as digits as its factorization.

64573443043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 43.

The spelling of 64573443043 in words is "sixty-four billion, five hundred seventy-three million, four hundred forty-three thousand, forty-three".