32843816909 has 2 divisors, whose sum is σ = 32843816910. Its totient is φ = 32843816908.

The previous prime is 32843816869. The next prime is 32843817011. The reversal of 32843816909 is 90961834823.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20700878884 + 12142938025 = 143878^2 + 110195^2 .

It is a cyclic number.

It is not a de Polignac number, because 32843816909 - 2¹⁶ = 32843751373 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32843812909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16421908454 + 16421908455.

It is an arithmetic number, because the mean of its divisors is an integer number (16421908455).

Almost surely, 2^32843816909 is an apocalyptic number.

It is an amenable number.

32843816909 is a deficient number, since it is larger than the sum of its proper divisors (1).

32843816909 is an equidigital number, since it uses as much as digits as its factorization.

32843816909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 32843816909 in words is "thirty-two billion, eight hundred forty-three million, eight hundred sixteen thousand, nine hundred nine".