447064246820 has 24 divisors (see below), whose sum is σ = 961733332728. Its totient is φ = 174464096000.

The previous prime is 447064246799. The next prime is 447064246847. The reversal of 447064246820 is 28642460744.

It can be written as a sum of positive squares in 4 ways, for example, as 52388800996 + 394675445824 = 228886^2 + 628232^2 .

It is a super-2 number, since 2×447064246820² (a number of 24 digits) contains 22 as substring.

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, 272599331 + ... + 272600970.

It is an arithmetic number, because the mean of its divisors is an integer number (40072222197).

Almost surely, 2^447064246820 is an apocalyptic number.

It is an amenable number.

447064246820 is an abundant number, since it is smaller than the sum of its proper divisors (514669085908).

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

447064246820 is a wasteful number, since it uses less digits than its factorization.

447064246820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545200351 (or 545200349 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 47.

The spelling of 447064246820 in words is "four hundred forty-seven billion, sixty-four million, two hundred forty-six thousand, eight hundred twenty".