449929064880 has 160 divisors (see below), whose sum is σ = 1552170654720. Its totient is φ = 119794118400.

The previous prime is 449929064857. The next prime is 449929064887. The reversal of 449929064880 is 88460929944.

449929064880 is a `hidden beast` number, since 4 + 499 + 2 + 9 + 0 + 64 + 8 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (449929064887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226905 + ... + 1550855.

It is an arithmetic number, because the mean of its divisors is an integer number (9701066592).

Almost surely, 2^449929064880 is an apocalyptic number.

449929064880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449929064880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776085327360).

449929064880 is an abundant number, since it is smaller than the sum of its proper divisors (1102241589840).

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

449929064880 is a wasteful number, since it uses less digits than its factorization.

449929064880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324616 (or 324604 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

It can be divided in two parts, 449929064 and 880, that added together give a palindrome (449929944).

The spelling of 449929064880 in words is "four hundred forty-nine billion, nine hundred twenty-nine million, sixty-four thousand, eight hundred eighty".