8448743281 has 24 divisors (see below), whose sum is σ = 9990514944. Its totient is φ = 7079646240.

The previous prime is 8448743267. The next prime is 8448743287. The reversal of 8448743281 is 1823478448.

It is not a de Polignac number, because 8448743281 - 2¹¹ = 8448741233 is a prime.

It is a super-2 number, since 2×8448743281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8448743287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118176 + ... + 175678.

It is an arithmetic number, because the mean of its divisors is an integer number (416271456).

Almost surely, 2^8448743281 is an apocalyptic number.

It is an amenable number.

8448743281 is a deficient number, since it is larger than the sum of its proper divisors (1541771663).

8448743281 is a wasteful number, since it uses less digits than its factorization.

8448743281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57589 (or 57570 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 49.

The square root of 8448743281 is about 91917.0456498684. The cubic root of 8448743281 is about 2036.7170765694.

The spelling of 8448743281 in words is "eight billion, four hundred forty-eight million, seven hundred forty-three thousand, two hundred eighty-one".