447783135556 has 81 divisors (see below), whose sum is σ = 832298344479. Its totient is φ = 210787290000.

The previous prime is 447783135529. The next prime is 447783135557. The reversal of 447783135556 is 655531387744.

The square root of 447783135556 is 669166.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 447783135556.

It is not an unprimeable number, because it can be changed into a prime (447783135557) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1783996431 + ... + 1783996681.

Almost surely, 2^447783135556 is an apocalyptic number.

447783135556 is the 669166-th square number.

It is an amenable number.

447783135556 is a deficient number, since it is larger than the sum of its proper divisors (384515208923).

447783135556 is an equidigital number, since it uses as much as digits as its factorization.

447783135556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 327 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 58.

The spelling of 447783135556 in words is "four hundred forty-seven billion, seven hundred eighty-three million, one hundred thirty-five thousand, five hundred fifty-six".