445801601209 has 2 divisors, whose sum is σ = 445801601210. Its totient is φ = 445801601208.

The previous prime is 445801601191. The next prime is 445801601239. The reversal of 445801601209 is 902106108544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262384695225 + 183416905984 = 512235^2 + 428272^2 .

It is a cyclic number.

It is not a de Polignac number, because 445801601209 - 2⁹ = 445801600697 is a prime.

It is not a weakly prime, because it can be changed into another prime (445801601239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222900800604 + 222900800605.

It is an arithmetic number, because the mean of its divisors is an integer number (222900800605).

Almost surely, 2^445801601209 is an apocalyptic number.

It is an amenable number.

445801601209 is a deficient number, since it is larger than the sum of its proper divisors (1).

445801601209 is an equidigital number, since it uses as much as digits as its factorization.

445801601209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 445801601209 in words is "four hundred forty-five billion, eight hundred one million, six hundred one thousand, two hundred nine".