449858939544 has 192 divisors, whose sum is σ = 1455230499840. Its totient is φ = 122750749440.

The previous prime is 449858939531. The next prime is 449858939549. The reversal of 449858939544 is 445939858944.

449858939544 is a `hidden beast` number, since 4 + 4 + 9 + 8 + 589 + 39 + 5 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449858939549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7470034 + ... + 7530014.

It is an arithmetic number, because the mean of its divisors is an integer number (7579325520).

Almost surely, 2^449858939544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449858939544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727615249920).

449858939544 is an abundant number, since it is smaller than the sum of its proper divisors (1005371560296).

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

449858939544 is a wasteful number, since it uses less digits than its factorization.

449858939544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60670 (or 60663 counting only the distinct ones).

The product of its digits is 895795200, while the sum is 72.

The spelling of 449858939544 in words is "four hundred forty-nine billion, eight hundred fifty-eight million, nine hundred thirty-nine thousand, five hundred forty-four".