8521498860 has 576 divisors, whose sum is σ = 31133491200. Its totient is φ = 1737469440.

The previous prime is 8521498859. The next prime is 8521498861. The reversal of 8521498860 is 688941258.

It is an interprime number because it is at equal distance from previous prime (8521498859) and next prime (8521498861).

It is not an unprimeable number, because it can be changed into a prime (8521498861) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 230310762 + ... + 230310798.

It is an arithmetic number, because the mean of its divisors is an integer number (54051200).

Almost surely, 2^8521498860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8521498860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15566745600).

8521498860 is an abundant number, since it is smaller than the sum of its proper divisors (22611992340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8521498860 is a wasteful number, since it uses less digits than its factorization.

8521498860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 8521498860 is about 92311.9648799656. The cubic root of 8521498860 is about 2042.5467088651.

The spelling of 8521498860 in words is "eight billion, five hundred twenty-one million, four hundred ninety-eight thousand, eight hundred sixty".