447144894784 has 168 divisors, whose sum is σ = 1085580361728. Its totient is φ = 181950612480.

The previous prime is 447144894737. The next prime is 447144894799. The reversal of 447144894784 is 487498441744.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5109057 + ... + 5195839.

Almost surely, 2^447144894784 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 447144894784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542790180864).

447144894784 is an abundant number, since it is smaller than the sum of its proper divisors (638435466944).

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

447144894784 is a wasteful number, since it uses less digits than its factorization.

447144894784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86893 (or 86876 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 64.

The spelling of 447144894784 in words is "four hundred forty-seven billion, one hundred forty-four million, eight hundred ninety-four thousand, seven hundred eighty-four".