449689360000 has 80 divisors (see below), whose sum is σ = 1119473755290. Its totient is φ = 179875712000.

The previous prime is 449689359991. The next prime is 449689360013. The reversal of 449689360000 is 63986944.

It can be written as a sum of positive squares in 5 ways, for example, as 7932396096 + 441756963904 = 89064^2 + 664648^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2730559 + ... + 2890558.

Almost surely, 2^449689360000 is an apocalyptic number.

449689360000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449689360000 is an abundant number, since it is smaller than the sum of its proper divisors (669784395290).

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

449689360000 is an frugal number, since it uses more digits than its factorization.

449689360000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621151 (or 5621124 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 449689360000 in words is "four hundred forty-nine billion, six hundred eighty-nine million, three hundred sixty thousand".