449723161448 has 32 divisors (see below), whose sum is σ = 923027888160. Its totient is φ = 203721929280.

The previous prime is 449723161427. The next prime is 449723161471. The reversal of 449723161448 is 844161327944.

It is a self number, because there is not a number n which added to its sum of digits gives 449723161448.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8695190 + ... + 8746757.

It is an arithmetic number, because the mean of its divisors is an integer number (28844621505).

Almost surely, 2^449723161448 is an apocalyptic number.

It is an amenable number.

449723161448 is an abundant number, since it is smaller than the sum of its proper divisors (473304726712).

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

449723161448 is a wasteful number, since it uses less digits than its factorization.

449723161448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17442257 (or 17442253 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The spelling of 449723161448 in words is "four hundred forty-nine billion, seven hundred twenty-three million, one hundred sixty-one thousand, four hundred forty-eight".