449123490723328 has 40 divisors (see below), whose sum is σ = 898288283305512. Its totient is φ = 224331896856576.

The previous prime is 449123490723319. The next prime is 449123490723403. The reversal of 449123490723328 is 823327094321944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448422150 + ... + 449422597.

Almost surely, 2^{449123490723328} is an apocalyptic number.

It is an amenable number.

449123490723328 is an abundant number, since it is smaller than the sum of its proper divisors (449164792582184).

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

449123490723328 is an frugal number, since it uses more digits than its factorization.

449123490723328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897845742 (or 897845726 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 61.

The spelling of 449123490723328 in words is "four hundred forty-nine trillion, one hundred twenty-three billion, four hundred ninety million, seven hundred twenty-three thousand, three hundred twenty-eight".