449212454257 has 4 divisors (see below), whose sum is σ = 513385662016. Its totient is φ = 385039246500.

The previous prime is 449212454239. The next prime is 449212454263. The reversal of 449212454257 is 752454212944.

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 449212454257 - 2³¹ = 447064970609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449212454257.

It is not an unprimeable number, because it can be changed into a prime (449212454227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32086603869 + ... + 32086603882.

It is an arithmetic number, because the mean of its divisors is an integer number (128346415504).

Almost surely, 2^449212454257 is an apocalyptic number.

It is an amenable number.

449212454257 is a deficient number, since it is larger than the sum of its proper divisors (64173207759).

449212454257 is an equidigital number, since it uses as much as digits as its factorization.

449212454257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64173207758.

The product of its digits is 3225600, while the sum is 49.

The spelling of 449212454257 in words is "four hundred forty-nine billion, two hundred twelve million, four hundred fifty-four thousand, two hundred fifty-seven".