409208452843 has 16 divisors (see below), whose sum is σ = 413594854560. Its totient is φ = 404849442816.

The previous prime is 409208452841. The next prime is 409208452931. The reversal of 409208452843 is 348254802904.

It is a cyclic number.

It is not a de Polignac number, because 409208452843 - 2¹ = 409208452841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409208452841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44200671 + ... + 44209927.

It is an arithmetic number, because the mean of its divisors is an integer number (25849678410).

Almost surely, 2^409208452843 is an apocalyptic number.

409208452843 is a deficient number, since it is larger than the sum of its proper divisors (4386401717).

409208452843 is a wasteful number, since it uses less digits than its factorization.

409208452843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10686.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 409208452843 in words is "four hundred nine billion, two hundred eight million, four hundred fifty-two thousand, eight hundred forty-three".