409245208009 has 8 divisors (see below), whose sum is σ = 446453972352. Its totient is φ = 372037219440.

The previous prime is 409245207961. The next prime is 409245208033. The reversal of 409245208009 is 900802542904.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 409245208009 - 2¹¹ = 409245205961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409245208079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1804107 + ... + 2018239.

It is an arithmetic number, because the mean of its divisors is an integer number (55806746544).

Almost surely, 2^409245208009 is an apocalyptic number.

It is an amenable number.

409245208009 is a deficient number, since it is larger than the sum of its proper divisors (37208764343).

409245208009 is a wasteful number, since it uses less digits than its factorization.

409245208009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387887.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 409245208009 in words is "four hundred nine billion, two hundred forty-five million, two hundred eight thousand, nine".