1447997405568 has 192 divisors, whose sum is σ = 4542085589760. Its totient is φ = 400367232000.

The previous prime is 1447997405501. The next prime is 1447997405587. The reversal of 1447997405568 is 8655047997441.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2302893 + ... + 2863443.

It is an arithmetic number, because the mean of its divisors is an integer number (23656695780).

Almost surely, 2^{1447997405568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1447997405568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2271042794880).

1447997405568 is an abundant number, since it is smaller than the sum of its proper divisors (3094088184192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1447997405568 is an equidigital number, since it uses as much as digits as its factorization.

1447997405568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560637 (or 560594 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 69.

The spelling of 1447997405568 in words is "one trillion, four hundred forty-seven billion, nine hundred ninety-seven million, four hundred five thousand, five hundred sixty-eight".