447199981512 has 128 divisors (see below), whose sum is σ = 1144596480000. Its totient is φ = 145568586240.

The previous prime is 447199981507. The next prime is 447199981513. The reversal of 447199981512 is 215189991744.

It is a super-2 number, since 2×447199981512² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (447199981513) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 73561689 + ... + 73567767.

It is an arithmetic number, because the mean of its divisors is an integer number (8942160000).

Almost surely, 2^447199981512 is an apocalyptic number.

It is an amenable number.

447199981512 is an abundant number, since it is smaller than the sum of its proper divisors (697396498488).

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

447199981512 is a wasteful number, since it uses less digits than its factorization.

447199981512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571 (or 6567 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 60.

The spelling of 447199981512 in words is "four hundred forty-seven billion, one hundred ninety-nine million, nine hundred eighty-one thousand, five hundred twelve".