449723928319 has 2 divisors, whose sum is σ = 449723928320. Its totient is φ = 449723928318.

The previous prime is 449723928289. The next prime is 449723928377. The reversal of 449723928319 is 913829327944.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449723928319 is a prime.

It is a super-2 number, since 2×449723928319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449723928419) 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 as a sum of consecutive naturals, namely, 224861964159 + 224861964160.

It is an arithmetic number, because the mean of its divisors is an integer number (224861964160).

Almost surely, 2^449723928319 is an apocalyptic number.

449723928319 is a deficient number, since it is larger than the sum of its proper divisors (1).

449723928319 is an equidigital number, since it uses as much as digits as its factorization.

449723928319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 61.

The spelling of 449723928319 in words is "four hundred forty-nine billion, seven hundred twenty-three million, nine hundred twenty-eight thousand, three hundred nineteen".