447875489536 has 72 divisors (see below), whose sum is σ = 909722957360. Its totient is φ = 220032958464.

The previous prime is 447875489531. The next prime is 447875489569. The reversal of 447875489536 is 635984578744.

It is a super-2 number, since 2×447875489536² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447875489531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386770 + ... + 3516526.

Almost surely, 2^447875489536 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 447875489536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454861478680).

447875489536 is an abundant number, since it is smaller than the sum of its proper divisors (461847467824).

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

447875489536 is a wasteful number, since it uses less digits than its factorization.

447875489536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130009 (or 129995 counting only the distinct ones).

The product of its digits is 812851200, while the sum is 70.

The spelling of 447875489536 in words is "four hundred forty-seven billion, eight hundred seventy-five million, four hundred eighty-nine thousand, five hundred thirty-six".