449569859728 has 20 divisors (see below), whose sum is σ = 950227203888. Its totient is φ = 204349936160.

The previous prime is 449569859723. The next prime is 449569859741. The reversal of 449569859728 is 827958965944.

It is a super-2 number, since 2×449569859728² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449569859723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277186926 + ... + 1277187277.

Almost surely, 2^449569859728 is an apocalyptic number.

It is an amenable number.

449569859728 is an abundant number, since it is smaller than the sum of its proper divisors (500657344160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449569859728 is a wasteful number, since it uses less digits than its factorization.

449569859728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554374222 (or 2554374216 counting only the distinct ones).

The product of its digits is 1567641600, while the sum is 76.

The spelling of 449569859728 in words is "four hundred forty-nine billion, five hundred sixty-nine million, eight hundred fifty-nine thousand, seven hundred twenty-eight".