8638861060 has 48 divisors (see below), whose sum is σ = 18319880880. Its totient is φ = 3421716480.

The previous prime is 8638861057. The next prime is 8638861067. The reversal of 8638861060 is 601688368.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1211179204 + 7427681856 = 34802^2 + 86184^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8638861060.

It is not an unprimeable number, because it can be changed into a prime (8638861067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149796 + ... + 1157284.

It is an arithmetic number, because the mean of its divisors is an integer number (381664185).

Almost surely, 2^8638861060 is an apocalyptic number.

It is an amenable number.

8638861060 is an abundant number, since it is smaller than the sum of its proper divisors (9681019820).

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

8638861060 is a wasteful number, since it uses less digits than its factorization.

8638861060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056 (or 8054 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 8638861060 is about 92945.4735853231. The cubic root of 8638861060 is about 2051.8809672348.

The spelling of 8638861060 in words is "eight billion, six hundred thirty-eight million, eight hundred sixty-one thousand, sixty".