32644968805 has 4 divisors (see below), whose sum is σ = 39173962572. Its totient is φ = 26115975040.

The previous prime is 32644968793. The next prime is 32644968809. The reversal of 32644968805 is 50886944623.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13219020676 + 19425948129 = 114974^2 + 139377^2 .

It is not a de Polignac number, because 32644968805 - 2⁷ = 32644968677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32644968809) 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 in 3 ways as a sum of consecutive naturals, for example, 3264496876 + ... + 3264496885.

It is an arithmetic number, because the mean of its divisors is an integer number (9793490643).

Almost surely, 2^32644968805 is an apocalyptic number.

It is an amenable number.

32644968805 is a deficient number, since it is larger than the sum of its proper divisors (6528993767).

32644968805 is an equidigital number, since it uses as much as digits as its factorization.

32644968805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6528993766.

The product of its (nonzero) digits is 9953280, while the sum is 55.

The spelling of 32644968805 in words is "thirty-two billion, six hundred forty-four million, nine hundred sixty-eight thousand, eight hundred five".