447646364672 has 352 divisors, whose sum is σ = 1028848794624. Its totient is φ = 193226342400.

The previous prime is 447646364663. The next prime is 447646364771. The reversal of 447646364672 is 276463646744.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2121546647 + ... + 2121546857.

Almost surely, 2^447646364672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447646364672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514424397312).

447646364672 is an abundant number, since it is smaller than the sum of its proper divisors (581202429952).

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

447646364672 is a wasteful number, since it uses less digits than its factorization.

447646364672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 407 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 59.

The spelling of 447646364672 in words is "four hundred forty-seven billion, six hundred forty-six million, three hundred sixty-four thousand, six hundred seventy-two".