448375489282561 has 4 divisors (see below), whose sum is σ = 448405466932692. Its totient is φ = 448345511632432.

The previous prime is 448375489282547. The next prime is 448375489282571. The reversal of 448375489282561 is 165282984573844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334352196090000 + 114023293192561 = 18285300^2 + 10678169^2 .

It is a cyclic number.

It is not a de Polignac number, because 448375489282561 - 2⁷ = 448375489282433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448375489282571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14988802630 + ... + 14988832543.

It is an arithmetic number, because the mean of its divisors is an integer number (112101366733173).

Almost surely, 2^{448375489282561} is an apocalyptic number.

It is an amenable number.

448375489282561 is a deficient number, since it is larger than the sum of its proper divisors (29977650131).

448375489282561 is a wasteful number, since it uses less digits than its factorization.

448375489282561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29977650130.

The product of its digits is 3715891200, while the sum is 76.

The spelling of 448375489282561 in words is "four hundred forty-eight trillion, three hundred seventy-five billion, four hundred eighty-nine million, two hundred eighty-two thousand, five hundred sixty-one".