449859808761 has 16 divisors (see below), whose sum is σ = 662624348160. Its totient is φ = 269191138320.

The previous prime is 449859808753. The next prime is 449859808763. The reversal of 449859808761 is 167808958944.

It is not a de Polignac number, because 449859808761 - 2³ = 449859808753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (449859808763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86276605 + ... + 86281818.

It is an arithmetic number, because the mean of its divisors is an integer number (41414021760).

Almost surely, 2^449859808761 is an apocalyptic number.

It is an amenable number.

449859808761 is a deficient number, since it is larger than the sum of its proper divisors (212764539399).

449859808761 is a wasteful number, since it uses less digits than its factorization.

449859808761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172558516.

The product of its (nonzero) digits is 139345920, while the sum is 69.

The spelling of 449859808761 in words is "four hundred forty-nine billion, eight hundred fifty-nine million, eight hundred eight thousand, seven hundred sixty-one".