445644614450 has 144 divisors (see below), whose sum is σ = 989286190560. Its totient is φ = 148868052480.

The previous prime is 445644614447. The next prime is 445644614539. The reversal of 445644614450 is 54416446544.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 445644614395 and 445644614404.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16320509 + ... + 16347791.

It is an arithmetic number, because the mean of its divisors is an integer number (6870042990).

Almost surely, 2^445644614450 is an apocalyptic number.

445644614450 is an abundant number, since it is smaller than the sum of its proper divisors (543641576110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445644614450 is a wasteful number, since it uses less digits than its factorization.

445644614450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27481 (or 27469 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 47.

The spelling of 445644614450 in words is "four hundred forty-five billion, six hundred forty-four million, six hundred fourteen thousand, four hundred fifty".