8512849281 has 8 divisors (see below), whose sum is σ = 11947858720. Its totient is φ = 5376536352.

The previous prime is 8512849223. The next prime is 8512849307. The reversal of 8512849281 is 1829482158.

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

It is not a de Polignac number, because 8512849281 - 2⁷ = 8512849153 is a prime.

It is a super-2 number, since 2×8512849281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8512849281.

It is not an unprimeable number, because it can be changed into a prime (8512349281) 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 7 ways as a sum of consecutive naturals, for example, 74674060 + ... + 74674173.

It is an arithmetic number, because the mean of its divisors is an integer number (1493482340).

Almost surely, 2^8512849281 is an apocalyptic number.

It is an amenable number.

8512849281 is a deficient number, since it is larger than the sum of its proper divisors (3435009439).

8512849281 is a wasteful number, since it uses less digits than its factorization.

8512849281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149348255.

The product of its digits is 368640, while the sum is 48.

The square root of 8512849281 is about 92265.1032677035. The cubic root of 8512849281 is about 2041.8553926873.

The spelling of 8512849281 in words is "eight billion, five hundred twelve million, eight hundred forty-nine thousand, two hundred eighty-one".