8786571085440 has 640 divisors, whose sum is σ = 33835691736000. Its totient is φ = 2165614755840.

The previous prime is 8786571085403. The next prime is 8786571085471. The reversal of 8786571085440 is 445801756878.

It is a happy number.

8786571085440 is a `hidden beast` number, since 8 + 7 + 8 + 6 + 571 + 0 + 8 + 54 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 40274571 + ... + 40492149.

Almost surely, 2^{8786571085440} is an apocalyptic number.

8786571085440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8786571085440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16917845868000).

8786571085440 is an abundant number, since it is smaller than the sum of its proper divisors (25049120650560).

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

8786571085440 is a wasteful number, since it uses less digits than its factorization.

8786571085440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217670 (or 217649 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 63.

The spelling of 8786571085440 in words is "eight trillion, seven hundred eighty-six billion, five hundred seventy-one million, eighty-five thousand, four hundred forty".