448439091817 has 8 divisors (see below), whose sum is σ = 454495104000. Its totient is φ = 442422532944.

The previous prime is 448439091799. The next prime is 448439091829. The reversal of 448439091817 is 718190934844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448439091817 is a prime.

It is a super-2 number, since 2×448439091817² (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 (448439091017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9840442 + ... + 9885907.

It is an arithmetic number, because the mean of its divisors is an integer number (56811888000).

Almost surely, 2^448439091817 is an apocalyptic number.

It is an amenable number.

448439091817 is a deficient number, since it is larger than the sum of its proper divisors (6056012183).

448439091817 is a wasteful number, since it uses less digits than its factorization.

448439091817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19726655.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 448439091817 in words is "four hundred forty-eight billion, four hundred thirty-nine million, ninety-one thousand, eight hundred seventeen".