447228563438 has 16 divisors (see below), whose sum is σ = 686470664880. Its totient is φ = 218405414976.

The previous prime is 447228563399. The next prime is 447228563449. The reversal of 447228563438 is 834365822744.

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, 2495906 + ... + 2669082.

It is an arithmetic number, because the mean of its divisors is an integer number (42904416555).

Almost surely, 2^447228563438 is an apocalyptic number.

447228563438 is a deficient number, since it is larger than the sum of its proper divisors (239242101442).

447228563438 is a wasteful number, since it uses less digits than its factorization.

447228563438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203251.

The product of its digits is 30965760, while the sum is 56.

The spelling of 447228563438 in words is "four hundred forty-seven billion, two hundred twenty-eight million, five hundred sixty-three thousand, four hundred thirty-eight".