448140648133 has 4 divisors (see below), whose sum is σ = 460252557580. Its totient is φ = 436028738688.

The previous prime is 448140648127. The next prime is 448140648227. The reversal of 448140648133 is 331846041844.

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 243504745444 + 204635902689 = 493462^2 + 452367^2 .

It is a cyclic number.

It is not a de Polignac number, because 448140648133 - 2²⁹ = 447603777221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448140648103) 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, 6055954668 + ... + 6055954741.

It is an arithmetic number, because the mean of its divisors is an integer number (115063139395).

Almost surely, 2^448140648133 is an apocalyptic number.

It is an amenable number.

448140648133 is a deficient number, since it is larger than the sum of its proper divisors (12111909447).

448140648133 is a wasteful number, since it uses less digits than its factorization.

448140648133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12111909446.

The product of its (nonzero) digits is 884736, while the sum is 46.

Adding to 448140648133 its reverse (331846041844), we get a palindrome (779986689977).

The spelling of 448140648133 in words is "four hundred forty-eight billion, one hundred forty million, six hundred forty-eight thousand, one hundred thirty-three".