449651220443 has 2 divisors, whose sum is σ = 449651220444. Its totient is φ = 449651220442.

The previous prime is 449651220391. The next prime is 449651220517. The reversal of 449651220443 is 344022156944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449651220443 - 2¹⁰ = 449651219419 is a prime.

It is a super-2 number, since 2×449651220443² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 449651220394 and 449651220403.

It is not a weakly prime, because it can be changed into another prime (449651220043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224825610221 + 224825610222.

It is an arithmetic number, because the mean of its divisors is an integer number (224825610222).

Almost surely, 2^449651220443 is an apocalyptic number.

449651220443 is a deficient number, since it is larger than the sum of its proper divisors (1).

449651220443 is an equidigital number, since it uses as much as digits as its factorization.

449651220443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 449651220443 in words is "four hundred forty-nine billion, six hundred fifty-one million, two hundred twenty thousand, four hundred forty-three".