8125617860 has 12 divisors (see below), whose sum is σ = 17063797548. Its totient is φ = 3250247136.

The previous prime is 8125617821. The next prime is 8125617869. The reversal of 8125617860 is 687165218.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3017085184 + 5108532676 = 54928^2 + 71474^2 .

It is not an unprimeable number, because it can be changed into a prime (8125617869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203140427 + ... + 203140466.

It is an arithmetic number, because the mean of its divisors is an integer number (1421983129).

Almost surely, 2^8125617860 is an apocalyptic number.

It is an amenable number.

8125617860 is an abundant number, since it is smaller than the sum of its proper divisors (8938179688).

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

8125617860 is a wasteful number, since it uses less digits than its factorization.

8125617860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406280902 (or 406280900 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 8125617860 is about 90142.2090920785. The cubic root of 8125617860 is about 2010.4138368873.

The spelling of 8125617860 in words is "eight billion, one hundred twenty-five million, six hundred seventeen thousand, eight hundred sixty".