8857857171564 has 24 divisors (see below), whose sum is σ = 22964814889520. Its totient is φ = 2952619057152.

The previous prime is 8857857171529. The next prime is 8857857171571. The reversal of 8857857171564 is 4651717587588.

8857857171564 is a `hidden beast` number, since 8 + 8 + 5 + 7 + 8 + 57 + 1 + 7 + 1 + 564 = 666.

It is a super-2 number, since 2×8857857171564² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8857857171492 and 8857857171501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41008597909 + ... + 41008598124.

Almost surely, 2^{8857857171564} is an apocalyptic number.

It is an amenable number.

8857857171564 is an abundant number, since it is smaller than the sum of its proper divisors (14106957717956).

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

8857857171564 is a wasteful number, since it uses less digits than its factorization.

8857857171564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82017196046 (or 82017196038 counting only the distinct ones).

The product of its digits is 526848000, while the sum is 72.

The spelling of 8857857171564 in words is "eight trillion, eight hundred fifty-seven billion, eight hundred fifty-seven million, one hundred seventy-one thousand, five hundred sixty-four".