448944329791 has 4 divisors (see below), whose sum is σ = 448987787752. Its totient is φ = 448900871832.

The previous prime is 448944329789. The next prime is 448944329831. The reversal of 448944329791 is 197923449844.

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 448944329791 - 2¹ = 448944329789 is a prime.

It is a super-2 number, since 2×448944329791² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448944329761) 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, 21713481 + ... + 21734146.

It is an arithmetic number, because the mean of its divisors is an integer number (112246946938).

Almost surely, 2^448944329791 is an apocalyptic number.

448944329791 is a deficient number, since it is larger than the sum of its proper divisors (43457961).

448944329791 is a wasteful number, since it uses less digits than its factorization.

448944329791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43457960.

The product of its digits is 62705664, while the sum is 64.

The spelling of 448944329791 in words is "four hundred forty-eight billion, nine hundred forty-four million, three hundred twenty-nine thousand, seven hundred ninety-one".