449921600009 has 32 divisors (see below), whose sum is σ = 546513792000. Its totient is φ = 361806502464.

The previous prime is 449921599993. The next prime is 449921600021. The reversal of 449921600009 is 900006129944.

It is a cyclic number.

It is not a de Polignac number, because 449921600009 - 2⁴ = 449921599993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449921600039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31581842 + ... + 31596084.

It is an arithmetic number, because the mean of its divisors is an integer number (17078556000).

Almost surely, 2^449921600009 is an apocalyptic number.

It is an amenable number.

449921600009 is a deficient number, since it is larger than the sum of its proper divisors (96592191991).

449921600009 is a wasteful number, since it uses less digits than its factorization.

449921600009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 449921600009 in words is "four hundred forty-nine billion, nine hundred twenty-one million, six hundred thousand, nine".