64423232443 has 2 divisors, whose sum is σ = 64423232444. Its totient is φ = 64423232442.

The previous prime is 64423232429. The next prime is 64423232449. The reversal of 64423232443 is 34423232446.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64423232443 - 2⁹ = 64423231931 is a prime.

It is not a weakly prime, because it can be changed into another prime (64423232449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32211616221 + 32211616222.

It is an arithmetic number, because the mean of its divisors is an integer number (32211616222).

Almost surely, 2^64423232443 is an apocalyptic number.

64423232443 is a deficient number, since it is larger than the sum of its proper divisors (1).

64423232443 is an equidigital number, since it uses as much as digits as its factorization.

64423232443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 37.

Adding to 64423232443 its reverse (34423232446), we get a palindrome (98846464889).

The spelling of 64423232443 in words is "sixty-four billion, four hundred twenty-three million, two hundred thirty-two thousand, four hundred forty-three".