448397397571 has 8 divisors (see below), whose sum is σ = 460586664144. Its totient is φ = 436211837280.

The previous prime is 448397397559. The next prime is 448397397587. The reversal of 448397397571 is 175793793844.

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

It is a cyclic number.

It is not a de Polignac number, because 448397397571 - 2⁷ = 448397397443 is a prime.

It is a super-2 number, since 2×448397397571² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448397397497 and 448397397506.

It is not an unprimeable number, because it can be changed into a prime (448397397871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680440 + ... + 1166101.

It is an arithmetic number, because the mean of its divisors is an integer number (57573333018).

Almost surely, 2^448397397571 is an apocalyptic number.

448397397571 is a deficient number, since it is larger than the sum of its proper divisors (12189266573).

448397397571 is a wasteful number, since it uses less digits than its factorization.

448397397571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853141.

The product of its digits is 160030080, while the sum is 67.

The spelling of 448397397571 in words is "four hundred forty-eight billion, three hundred ninety-seven million, three hundred ninety-seven thousand, five hundred seventy-one".