450055856609 has 4 divisors (see below), whose sum is σ = 450347534016. Its totient is φ = 449764179204.

The previous prime is 450055856599. The next prime is 450055856639. The reversal of 450055856609 is 906658550054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450055856609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450055856639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145836389 + ... + 145839474.

It is an arithmetic number, because the mean of its divisors is an integer number (112586883504).

Almost surely, 2^450055856609 is an apocalyptic number.

It is an amenable number.

450055856609 is a deficient number, since it is larger than the sum of its proper divisors (291677407).

450055856609 is a wasteful number, since it uses less digits than its factorization.

450055856609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291677406.

The product of its (nonzero) digits is 6480000, while the sum is 53.

The spelling of 450055856609 in words is "four hundred fifty billion, fifty-five million, eight hundred fifty-six thousand, six hundred nine".