32543235209 has 2 divisors, whose sum is σ = 32543235210. Its totient is φ = 32543235208.

The previous prime is 32543235191. The next prime is 32543235217. The reversal of 32543235209 is 90253234523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18151633984 + 14391601225 = 134728^2 + 119965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32543235209 is a prime.

It is not a weakly prime, because it can be changed into another prime (32543235259) 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, 16271617604 + 16271617605.

It is an arithmetic number, because the mean of its divisors is an integer number (16271617605).

Almost surely, 2^32543235209 is an apocalyptic number.

It is an amenable number.

32543235209 is a deficient number, since it is larger than the sum of its proper divisors (1).

32543235209 is an equidigital number, since it uses as much as digits as its factorization.

32543235209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 32543235209 in words is "thirty-two billion, five hundred forty-three million, two hundred thirty-five thousand, two hundred nine".