448128691328 has 32 divisors (see below), whose sum is σ = 893311639500. Its totient is φ = 223924985856.

The previous prime is 448128691327. The next prime is 448128691337. The reversal of 448128691328 is 823196821844.

It can be written as a sum of positive squares in 2 ways, for example, as 436223262784 + 11905428544 = 660472^2 + 109112^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (448128691327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881993 + ... + 1293896.

Almost surely, 2^448128691328 is an apocalyptic number.

It is an amenable number.

448128691328 is a deficient number, since it is larger than the sum of its proper divisors (445182948172).

448128691328 is a wasteful number, since it uses less digits than its factorization.

448128691328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177512 (or 2177500 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The spelling of 448128691328 in words is "four hundred forty-eight billion, one hundred twenty-eight million, six hundred ninety-one thousand, three hundred twenty-eight".