448128804578 has 16 divisors (see below), whose sum is σ = 827314716480. Its totient is φ = 177281724816.

The previous prime is 448128804517. The next prime is 448128804619. The reversal of 448128804578 is 875408821844.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231122908 + ... + 1231123271.

It is an arithmetic number, because the mean of its divisors is an integer number (51707169780).

Almost surely, 2^448128804578 is an apocalyptic number.

448128804578 is a deficient number, since it is larger than the sum of its proper divisors (379185911902).

448128804578 is a wasteful number, since it uses less digits than its factorization.

448128804578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462246201.

The product of its (nonzero) digits is 18350080, while the sum is 59.

The spelling of 448128804578 in words is "four hundred forty-eight billion, one hundred twenty-eight million, eight hundred four thousand, five hundred seventy-eight".