441906441209 has 2 divisors, whose sum is σ = 441906441210. Its totient is φ = 441906441208.

The previous prime is 441906441161. The next prime is 441906441293. The reversal of 441906441209 is 902144609144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262198274809 + 179708166400 = 512053^2 + 423920^2 .

It is a cyclic number.

It is not a de Polignac number, because 441906441209 - 2²⁴ = 441889663993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 441906441209.

It is not a weakly prime, because it can be changed into another prime (441906441409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220953220604 + 220953220605.

It is an arithmetic number, because the mean of its divisors is an integer number (220953220605).

Almost surely, 2^441906441209 is an apocalyptic number.

It is an amenable number.

441906441209 is a deficient number, since it is larger than the sum of its proper divisors (1).

441906441209 is an equidigital number, since it uses as much as digits as its factorization.

441906441209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 441906441209 in words is "four hundred forty-one billion, nine hundred six million, four hundred forty-one thousand, two hundred nine".