445315321650 has 96 divisors (see below), whose sum is σ = 1115645469120. Its totient is φ = 117544734720.

The previous prime is 445315321643. The next prime is 445315321679. The reversal of 445315321650 is 56123513544.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 445315321599 and 445315321608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6994762 + ... + 7058138.

It is an arithmetic number, because the mean of its divisors is an integer number (11621306970).

Almost surely, 2^445315321650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445315321650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557822734560).

445315321650 is an abundant number, since it is smaller than the sum of its proper divisors (670330147470).

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

445315321650 is a wasteful number, since it uses less digits than its factorization.

445315321650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63868 (or 63863 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 445315321650 in words is "four hundred forty-five billion, three hundred fifteen million, three hundred twenty-one thousand, six hundred fifty".