8648448469 has 8 divisors (see below), whose sum is σ = 9115477560. Its totient is φ = 8192673216.

The previous prime is 8648448467. The next prime is 8648448491. The reversal of 8648448469 is 9648448468.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2085018244 + 6563430225 = 45662^2 + 81015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8648448469 - 2¹ = 8648448467 is a prime.

It is a super-2 number, since 2×8648448469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8648448461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811882 + ... + 2814955.

It is an arithmetic number, because the mean of its divisors is an integer number (1139434695).

Almost surely, 2^8648448469 is an apocalyptic number.

It is an amenable number.

8648448469 is a deficient number, since it is larger than the sum of its proper divisors (467029091).

8648448469 is a wasteful number, since it uses less digits than its factorization.

8648448469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626919.

The product of its digits is 42467328, while the sum is 61.

The square root of 8648448469 is about 92997.0347322967. The cubic root of 8648448469 is about 2052.6397458511.

Subtracting 8648448469 from its reverse (9648448468), we obtain a palindrome (999999999).

The spelling of 8648448469 in words is "eight billion, six hundred forty-eight million, four hundred forty-eight thousand, four hundred sixty-nine".