449563698738 has 576 divisors, whose sum is σ = 1354611548160. Its totient is φ = 106142400000.

The previous prime is 449563698671. The next prime is 449563698739. The reversal of 449563698738 is 837896365944.

449563698738 is a `hidden beast` number, since 4 + 495 + 6 + 3 + 69 + 8 + 73 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (449563698739) 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 287 ways as a sum of consecutive naturals, for example, 862885918 + ... + 862886438.

It is an arithmetic number, because the mean of its divisors is an integer number (2351756160).

Almost surely, 2^449563698738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449563698738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677305774080).

449563698738 is an abundant number, since it is smaller than the sum of its proper divisors (905047849422).

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

449563698738 is a wasteful number, since it uses less digits than its factorization.

449563698738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 745 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 72.

The spelling of 449563698738 in words is "four hundred forty-nine billion, five hundred sixty-three million, six hundred ninety-eight thousand, seven hundred thirty-eight".