8521298708 has 12 divisors (see below), whose sum is σ = 16059370740. Its totient is φ = 3932907072.

The previous prime is 8521298689. The next prime is 8521298711. The reversal of 8521298708 is 8078921258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3328366864 + 5192931844 = 57692^2 + 72062^2 .

It is a super-2 number, since 2×8521298708² (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, 81935513 + ... + 81935616.

It is an arithmetic number, because the mean of its divisors is an integer number (1338280895).

Almost surely, 2^8521298708 is an apocalyptic number.

It is an amenable number.

8521298708 is a deficient number, since it is larger than the sum of its proper divisors (7538072032).

8521298708 is a wasteful number, since it uses less digits than its factorization.

8521298708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163871146 (or 163871144 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 8521298708 is about 92310.8807671122. The cubic root of 8521298708 is about 2042.5307170380.

The spelling of 8521298708 in words is "eight billion, five hundred twenty-one million, two hundred ninety-eight thousand, seven hundred eight".