490516727306209 has 2 divisors, whose sum is σ = 490516727306210. Its totient is φ = 490516727306208.

The previous prime is 490516727306189. The next prime is 490516727306267. The reversal of 490516727306209 is 902603727615094.

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., 467784572075584 + 22732155230625 = 21628328^2 + 4767825^2 .

It is a cyclic number.

It is not a de Polignac number, because 490516727306209 - 2²³ = 490516718917601 is a prime.

It is not a weakly prime, because it can be changed into another prime (490516727306299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245258363653104 + 245258363653105.

It is an arithmetic number, because the mean of its divisors is an integer number (245258363653105).

Almost surely, 2^{490516727306209} is an apocalyptic number.

It is an amenable number.

490516727306209 is a deficient number, since it is larger than the sum of its proper divisors (1).

490516727306209 is an equidigital number, since it uses as much as digits as its factorization.

490516727306209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 490516727306209 in words is "four hundred ninety trillion, five hundred sixteen billion, seven hundred twenty-seven million, three hundred six thousand, two hundred nine".