449669398895 has 4 divisors (see below), whose sum is σ = 539603278680. Its totient is φ = 359735519112.

The previous prime is 449669398891. The next prime is 449669398909. The reversal of 449669398895 is 598893966944.

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

It is a cyclic number.

It is not a de Polignac number, because 449669398895 - 2² = 449669398891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449669398891) 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, 44966939885 + ... + 44966939894.

It is an arithmetic number, because the mean of its divisors is an integer number (134900819670).

Almost surely, 2^449669398895 is an apocalyptic number.

449669398895 is a deficient number, since it is larger than the sum of its proper divisors (89933879785).

449669398895 is an equidigital number, since it uses as much as digits as its factorization.

449669398895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89933879784.

The product of its digits is 3627970560, while the sum is 80.

The spelling of 449669398895 in words is "four hundred forty-nine billion, six hundred sixty-nine million, three hundred ninety-eight thousand, eight hundred ninety-five".