409459398496997 has 2 divisors, whose sum is σ = 409459398496998. Its totient is φ = 409459398496996.

The previous prime is 409459398496961. The next prime is 409459398497189. The reversal of 409459398496997 is 799694893954904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408924673396996 + 534725100001 = 20221886^2 + 731249^2 .

It is a cyclic number.

It is not a de Polignac number, because 409459398496997 - 2⁸ = 409459398496741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409459398490997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204729699248498 + 204729699248499.

It is an arithmetic number, because the mean of its divisors is an integer number (204729699248499).

Almost surely, 2^{409459398496997} is an apocalyptic number.

It is an amenable number.

409459398496997 is a deficient number, since it is larger than the sum of its proper divisors (1).

409459398496997 is an equidigital number, since it uses as much as digits as its factorization.

409459398496997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 171421608960, while the sum is 95.

The spelling of 409459398496997 in words is "four hundred nine trillion, four hundred fifty-nine billion, three hundred ninety-eight million, four hundred ninety-six thousand, nine hundred ninety-seven".