449535654397 has 4 divisors (see below), whose sum is σ = 461685266716. Its totient is φ = 437386042080.

The previous prime is 449535654391. The next prime is 449535654437. The reversal of 449535654397 is 793456535944.

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 373303892196 + 76231762201 = 610986^2 + 276101^2 .

It is a cyclic number.

It is not a de Polignac number, because 449535654397 - 2³ = 449535654389 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 (449535654391) 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, 6074806104 + ... + 6074806177.

It is an arithmetic number, because the mean of its divisors is an integer number (115421316679).

Almost surely, 2^449535654397 is an apocalyptic number.

It is an amenable number.

449535654397 is a deficient number, since it is larger than the sum of its proper divisors (12149612319).

449535654397 is a wasteful number, since it uses less digits than its factorization.

449535654397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12149612318.

The product of its digits is 244944000, while the sum is 64.

The spelling of 449535654397 in words is "four hundred forty-nine billion, five hundred thirty-five million, six hundred fifty-four thousand, three hundred ninety-seven".