447556986009 has 225 divisors, whose sum is σ = 821632962381. Its totient is φ = 242765631360.

The previous prime is 447556986007. The next prime is 447556986049. The reversal of 447556986009 is 900689655744.

The square root of 447556986009 is 668997.

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

447556986009 is a `hidden beast` number, since 4 + 4 + 7 + 5 + 569 + 8 + 60 + 0 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5294745225 + 442262240784 = 72765^2 + 665028^2 .

It is not a de Polignac number, because 447556986009 - 2¹ = 447556986007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (447556986007) by changing a digit.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 10916024029 + ... + 10916024069.

Almost surely, 2^447556986009 is an apocalyptic number.

447556986009 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

447556986009 is the 668997-th square number.

447556986009 is the 334499-th centered octagonal number.

It is an amenable number.

447556986009 is a deficient number, since it is larger than the sum of its proper divisors (374075976372).

447556986009 is an frugal number, since it uses more digits than its factorization.

447556986009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 447556986009 in words is "four hundred forty-seven billion, five hundred fifty-six million, nine hundred eighty-six thousand, nine".