447786994212 has 36 divisors (see below), whose sum is σ = 1132270370140. Its totient is φ = 149214284352.

The previous prime is 447786994211. The next prime is 447786994243. The reversal of 447786994212 is 212499687744.

447786994212 is a `hidden beast` number, since 4 + 47 + 7 + 86 + 99 + 421 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54800937216 + 392986056996 = 234096^2 + 626886^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 447786994212.

It is not an unprimeable number, because it can be changed into a prime (447786994211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1888483 + ... + 2112330.

Almost surely, 2^447786994212 is an apocalyptic number.

It is an amenable number.

447786994212 is an abundant number, since it is smaller than the sum of its proper divisors (684483375928).

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

447786994212 is a wasteful number, since it uses less digits than its factorization.

447786994212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003932 (or 4003927 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 447786994212 in words is "four hundred forty-seven billion, seven hundred eighty-six million, nine hundred ninety-four thousand, two hundred twelve".