447847758889 has 8 divisors (see below), whose sum is σ = 474659869320. Its totient is φ = 421087662336.

The previous prime is 447847758881. The next prime is 447847758947. The reversal of 447847758889 is 988857748744.

It can be written as a sum of positive squares in 4 ways, for example, as 33008712489 + 414839046400 = 181683^2 + 644080^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447847758889 - 2³ = 447847758881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447847758881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12985734 + ... + 13020175.

It is an arithmetic number, because the mean of its divisors is an integer number (59332483665).

Almost surely, 2^447847758889 is an apocalyptic number.

It is an amenable number.

447847758889 is a deficient number, since it is larger than the sum of its proper divisors (26812110431).

447847758889 is a wasteful number, since it uses less digits than its factorization.

447847758889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26006939.

The product of its digits is 4046192640, while the sum is 79.

The spelling of 447847758889 in words is "four hundred forty-seven billion, eight hundred forty-seven million, seven hundred fifty-eight thousand, eight hundred eighty-nine".