408932466409 has 2 divisors, whose sum is σ = 408932466410. Its totient is φ = 408932466408.

The previous prime is 408932466359. The next prime is 408932466421. The reversal of 408932466409 is 904664239804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332781304384 + 76151162025 = 576872^2 + 275955^2 .

It is a cyclic number.

It is not a de Polignac number, because 408932466409 - 2¹⁵ = 408932433641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 408932466409.

It is not a weakly prime, because it can be changed into another prime (408932466469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204466233204 + 204466233205.

It is an arithmetic number, because the mean of its divisors is an integer number (204466233205).

Almost surely, 2^408932466409 is an apocalyptic number.

It is an amenable number.

408932466409 is a deficient number, since it is larger than the sum of its proper divisors (1).

408932466409 is an equidigital number, since it uses as much as digits as its factorization.

408932466409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 408932466409 in words is "four hundred eight billion, nine hundred thirty-two million, four hundred sixty-six thousand, four hundred nine".