450899128072 has 16 divisors (see below), whose sum is σ = 845474412240. Its totient is φ = 225439284816.

The previous prime is 450899128061. The next prime is 450899128081. The reversal of 450899128072 is 270821998054.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096858 + ... + 1450825.

It is an arithmetic number, because the mean of its divisors is an integer number (52842150765).

Almost surely, 2^450899128072 is an apocalyptic number.

It is an amenable number.

450899128072 is a deficient number, since it is larger than the sum of its proper divisors (394575284168).

450899128072 is a wasteful number, since it uses less digits than its factorization.

450899128072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569812 (or 2569808 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 450899128072 in words is "four hundred fifty billion, eight hundred ninety-nine million, one hundred twenty-eight thousand, seventy-two".