8642859135876 has 81 divisors (see below), whose sum is σ = 25414484586309. Its totient is φ = 2469353046048.

The previous prime is 8642859135847. The next prime is 8642859135947. The reversal of 8642859135876 is 6785319582468.

The square root of 8642859135876 is 2939874.

It is a perfect power (a square), and thus also a powerful number.

8642859135876 is a `hidden beast` number, since 8 + 6 + 4 + 28 + 5 + 9 + 13 + 587 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7262647704900 + 1380211430976 = 2694930^2 + 1174824^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 123439710 + ... + 123509706.

Almost surely, 2^{8642859135876} is an apocalyptic number.

8642859135876 is the 2939874-th square number.

It is an amenable number.

8642859135876 is an abundant number, since it is smaller than the sum of its proper divisors (16771625450433).

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

8642859135876 is an frugal number, since it uses more digits than its factorization.

8642859135876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140018 (or 70009 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 72.

The spelling of 8642859135876 in words is "eight trillion, six hundred forty-two billion, eight hundred fifty-nine million, one hundred thirty-five thousand, eight hundred seventy-six".