449651220481 has 4 divisors (see below), whose sum is σ = 476101292292. Its totient is φ = 423201148672.

The previous prime is 449651220443. The next prime is 449651220517. The reversal of 449651220481 is 184022156944.

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

It can be written as a sum of positive squares in 2 ways, for example, as 397959105600 + 51692114881 = 630840^2 + 227359^2 .

It is not a de Polignac number, because 449651220481 - 2¹¹ = 449651218433 is a prime.

It is a super-2 number, since 2×449651220481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449651250481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13225035880 + ... + 13225035913.

It is an arithmetic number, because the mean of its divisors is an integer number (119025323073).

Almost surely, 2^449651220481 is an apocalyptic number.

It is an amenable number.

449651220481 is a deficient number, since it is larger than the sum of its proper divisors (26450071811).

449651220481 is a wasteful number, since it uses less digits than its factorization.

449651220481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26450071810.

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 449651220481 in words is "four hundred forty-nine billion, six hundred fifty-one million, two hundred twenty thousand, four hundred eighty-one".