8273729871 has 24 divisors (see below), whose sum is σ = 13042071120. Its totient is φ = 5012582400.

The previous prime is 8273729869. The next prime is 8273729921. The reversal of 8273729871 is 1789273728.

It is not a de Polignac number, because 8273729871 - 2¹ = 8273729869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8273729851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294351 + ... + 321231.

It is an arithmetic number, because the mean of its divisors is an integer number (543419630).

Almost surely, 2^8273729871 is an apocalyptic number.

8273729871 is a deficient number, since it is larger than the sum of its proper divisors (4768341249).

8273729871 is a wasteful number, since it uses less digits than its factorization.

8273729871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007 (or 30004 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 8273729871 is about 90960.0454650282. The cubic root of 8273729871 is about 2022.5554912318. Note that the first 3 decimals are identical.

The spelling of 8273729871 in words is "eight billion, two hundred seventy-three million, seven hundred twenty-nine thousand, eight hundred seventy-one".