449723069338956 has 144 divisors (see below), whose sum is σ = 1230437246976000. Its totient is φ = 127465145482752.

The previous prime is 449723069338931. The next prime is 449723069338969. The reversal of 449723069338956 is 659833960327944.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 624603645 + ... + 625323243.

It is an arithmetic number, because the mean of its divisors is an integer number (8544703104000).

Almost surely, 2^{449723069338956} 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 449723069338956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615218623488000).

449723069338956 is an abundant number, since it is smaller than the sum of its proper divisors (780714177637044).

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

449723069338956 is a wasteful number, since it uses less digits than its factorization.

449723069338956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728116 (or 728107 counting only the distinct ones).

The product of its (nonzero) digits is 6348948480, while the sum is 78.

The spelling of 449723069338956 in words is "four hundred forty-nine trillion, seven hundred twenty-three billion, sixty-nine million, three hundred thirty-eight thousand, nine hundred fifty-six".