447532905144 has 32 divisors (see below), whose sum is σ = 1204896283920. Its totient is φ = 137702432256.

The previous prime is 447532905139. The next prime is 447532905217. The reversal of 447532905144 is 441509235744.

It is a junction number, because it is equal to n+sod(n) for n = 447532905093 and 447532905102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717199857 + ... + 717200480.

Almost surely, 2^447532905144 is an apocalyptic number.

It is an amenable number.

447532905144 is an abundant number, since it is smaller than the sum of its proper divisors (757363378776).

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

447532905144 is a wasteful number, since it uses less digits than its factorization.

447532905144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434400359 (or 1434400355 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 447532905144 in words is "four hundred forty-seven billion, five hundred thirty-two million, nine hundred five thousand, one hundred forty-four".