449731023369 has 4 divisors (see below), whose sum is σ = 599641364496. Its totient is φ = 299820682244.

The previous prime is 449731023341. The next prime is 449731023389. The reversal of 449731023369 is 963320137944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 449731023369 - 2⁸ = 449731023113 is a prime.

It is a super-2 number, since 2×449731023369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449731023389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74955170559 + ... + 74955170564.

It is an arithmetic number, because the mean of its divisors is an integer number (149910341124).

Almost surely, 2^449731023369 is an apocalyptic number.

It is an amenable number.

449731023369 is a deficient number, since it is larger than the sum of its proper divisors (149910341127).

449731023369 is a wasteful number, since it uses less digits than its factorization.

449731023369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149910341126.

The product of its (nonzero) digits is 2939328, while the sum is 51.

The spelling of 449731023369 in words is "four hundred forty-nine billion, seven hundred thirty-one million, twenty-three thousand, three hundred sixty-nine".