532644443320643 has 4 divisors (see below), whose sum is σ = 533475401891208. Its totient is φ = 531813484750080.

The previous prime is 532644443320609. The next prime is 532644443320667. The reversal of 532644443320643 is 346023344446235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 532644443320643 - 2⁶ = 532644443320579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (532644443320043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415479284321 + ... + 415479285602.

It is an arithmetic number, because the mean of its divisors is an integer number (133368850472802).

Almost surely, 2^{532644443320643} is an apocalyptic number.

532644443320643 is a deficient number, since it is larger than the sum of its proper divisors (830958570565).

532644443320643 is an equidigital number, since it uses as much as digits as its factorization.

532644443320643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830958570564.

The product of its (nonzero) digits is 59719680, while the sum is 53.

Adding to 532644443320643 its reverse (346023344446235), we get a palindrome (878667787766878).

The spelling of 532644443320643 in words is "five hundred thirty-two trillion, six hundred forty-four billion, four hundred forty-three million, three hundred twenty thousand, six hundred forty-three".