447737469312 has 128 divisors (see below), whose sum is σ = 1366320844800. Its totient is φ = 127255080960.

The previous prime is 447737469299. The next prime is 447737469329. The reversal of 447737469312 is 213964737744.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77364 + ... + 949452.

It is an arithmetic number, because the mean of its divisors is an integer number (10674381600).

Almost surely, 2^447737469312 is an apocalyptic number.

447737469312 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447737469312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683160422400).

447737469312 is an abundant number, since it is smaller than the sum of its proper divisors (918583375488).

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

447737469312 is a wasteful number, since it uses less digits than its factorization.

447737469312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872304 (or 872292 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 57.

The spelling of 447737469312 in words is "four hundred forty-seven billion, seven hundred thirty-seven million, four hundred sixty-nine thousand, three hundred twelve".