449296677823 has 4 divisors (see below), whose sum is σ = 513481917520. Its totient is φ = 385111438128.

The previous prime is 449296677787. The next prime is 449296677827. The reversal of 449296677823 is 328776692944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449296677823 - 2⁹ = 449296677311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449296677827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32092619838 + ... + 32092619851.

It is an arithmetic number, because the mean of its divisors is an integer number (128370479380).

Almost surely, 2^449296677823 is an apocalyptic number.

449296677823 is a deficient number, since it is larger than the sum of its proper divisors (64185239697).

449296677823 is an equidigital number, since it uses as much as digits as its factorization.

449296677823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64185239696.

The product of its digits is 219469824, while the sum is 67.

The spelling of 449296677823 in words is "four hundred forty-nine billion, two hundred ninety-six million, six hundred seventy-seven thousand, eight hundred twenty-three".