443432243209 has 2 divisors, whose sum is σ = 443432243210. Its totient is φ = 443432243208.

The previous prime is 443432243173. The next prime is 443432243249. The reversal of 443432243209 is 902342234344.

It is an a-pointer prime, because the next prime (443432243249) can be obtained adding 443432243209 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331493820025 + 111938423184 = 575755^2 + 334572^2 .

It is a cyclic number.

It is not a de Polignac number, because 443432243209 - 2¹³ = 443432235017 is a prime.

It is not a weakly prime, because it can be changed into another prime (443432243249) 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, 221716121604 + 221716121605.

It is an arithmetic number, because the mean of its divisors is an integer number (221716121605).

Almost surely, 2^443432243209 is an apocalyptic number.

It is an amenable number.

443432243209 is a deficient number, since it is larger than the sum of its proper divisors (1).

443432243209 is an equidigital number, since it uses as much as digits as its factorization.

443432243209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 443432243209 in words is "four hundred forty-three billion, four hundred thirty-two million, two hundred forty-three thousand, two hundred nine".