447143728436 has 24 divisors (see below), whose sum is σ = 843775719360. Its totient is φ = 206638948800.

The previous prime is 447143728271. The next prime is 447143728463. The reversal of 447143728436 is 634827341744.

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, 71746520 + ... + 71752751.

It is an arithmetic number, because the mean of its divisors is an integer number (35157321640).

Almost surely, 2^447143728436 is an apocalyptic number.

It is an amenable number.

447143728436 is a deficient number, since it is larger than the sum of its proper divisors (396631990924).

447143728436 is a wasteful number, since it uses less digits than its factorization.

447143728436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143499335 (or 143499333 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 53.

The spelling of 447143728436 in words is "four hundred forty-seven billion, one hundred forty-three million, seven hundred twenty-eight thousand, four hundred thirty-six".