409079205697 has 2 divisors, whose sum is σ = 409079205698. Its totient is φ = 409079205696.

The previous prime is 409079205599. The next prime is 409079205701. The reversal of 409079205697 is 796502970904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324582017841 + 84497187856 = 569721^2 + 290684^2 .

It is a cyclic number.

It is not a de Polignac number, because 409079205697 - 2⁷ = 409079205569 is a prime.

It is not a weakly prime, because it can be changed into another prime (409079205497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204539602848 + 204539602849.

It is an arithmetic number, because the mean of its divisors is an integer number (204539602849).

Almost surely, 2^409079205697 is an apocalyptic number.

It is an amenable number.

409079205697 is a deficient number, since it is larger than the sum of its proper divisors (1).

409079205697 is an equidigital number, since it uses as much as digits as its factorization.

409079205697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 409079205697 in words is "four hundred nine billion, seventy-nine million, two hundred five thousand, six hundred ninety-seven".