8512816244 has 12 divisors (see below), whose sum is σ = 14922554724. Its totient is φ = 4249229184.

The previous prime is 8512816219. The next prime is 8512816267. The reversal of 8512816244 is 4426182158.

It can be written as a sum of positive squares in 2 ways, for example, as 7252566244 + 1260250000 = 85162^2 + 35500^2 .

It is a super-2 number, since 2×8512816244² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1792067 + ... + 1796810.

It is an arithmetic number, because the mean of its divisors is an integer number (1243546227).

Almost surely, 2^8512816244 is an apocalyptic number.

It is an amenable number.

8512816244 is a deficient number, since it is larger than the sum of its proper divisors (6409738480).

8512816244 is a wasteful number, since it uses less digits than its factorization.

8512816244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589474 (or 3589472 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 8512816244 is about 92264.9242345107. The cubic root of 8512816244 is about 2041.8527513130.

The spelling of 8512816244 in words is "eight billion, five hundred twelve million, eight hundred sixteen thousand, two hundred forty-four".