449816831865 has 48 divisors (see below), whose sum is σ = 797919325632. Its totient is φ = 234292447872.

The previous prime is 449816831851. The next prime is 449816831869. The reversal of 449816831865 is 568138618944.

449816831865 is a `hidden beast` number, since 4 + 498 + 1 + 6 + 83 + 1 + 8 + 65 = 666.

It is not a de Polignac number, because 449816831865 - 2⁸ = 449816831609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449816831869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29119834 + ... + 29135276.

It is an arithmetic number, because the mean of its divisors is an integer number (16623319284).

Almost surely, 2^449816831865 is an apocalyptic number.

449816831865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

449816831865 is a deficient number, since it is larger than the sum of its proper divisors (348102493767).

449816831865 is a wasteful number, since it uses less digits than its factorization.

449816831865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30550 (or 30547 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 449816831865 in words is "four hundred forty-nine billion, eight hundred sixteen million, eight hundred thirty-one thousand, eight hundred sixty-five".