8518512072 has 128 divisors (see below), whose sum is σ = 25803325440. Its totient is φ = 2291639040.

The previous prime is 8518512071. The next prime is 8518512073. The reversal of 8518512072 is 2702158158.

It is an interprime number because it is at equal distance from previous prime (8518512071) and next prime (8518512073).

It is a self number, because there is not a number n which added to its sum of digits gives 8518512072.

It is not an unprimeable number, because it can be changed into a prime (8518512071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170593 + ... + 214799.

It is an arithmetic number, because the mean of its divisors is an integer number (201588480).

Almost surely, 2^8518512072 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 8518512072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12901662720).

8518512072 is an abundant number, since it is smaller than the sum of its proper divisors (17284813368).

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

8518512072 is a wasteful number, since it uses less digits than its factorization.

8518512072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44291 (or 44287 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 8518512072 is about 92295.7857759497. The cubic root of 8518512072 is about 2042.3080432266.

The spelling of 8518512072 in words is "eight billion, five hundred eighteen million, five hundred twelve thousand, seventy-two".