8516419956 has 108 divisors (see below), whose sum is σ = 23719507812. Its totient is φ = 2574528000.

The previous prime is 8516419931. The next prime is 8516419987. The reversal of 8516419956 is 6599146158.

It can be written as a sum of positive squares in 2 ways, for example, as 6220476900 + 2295943056 = 78870^2 + 47916^2 .

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 35 ways as a sum of consecutive naturals, for example, 2005996 + ... + 2010236.

Almost surely, 2^8516419956 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 8516419956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11859753906).

8516419956 is an abundant number, since it is smaller than the sum of its proper divisors (15203087856).

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

8516419956 is a wasteful number, since it uses less digits than its factorization.

8516419956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734 (or 4718 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 8516419956 is about 92284.4513230696. The cubic root of 8516419956 is about 2042.1408350282.

The spelling of 8516419956 in words is "eight billion, five hundred sixteen million, four hundred nineteen thousand, nine hundred fifty-six".