8687485188 has 18 divisors (see below), whose sum is σ = 21960032094. Its totient is φ = 2895828384.

The previous prime is 8687485187. The next prime is 8687485199. The reversal of 8687485188 is 8815847868.

It can be written as a sum of positive squares in only one way, i.e., 8685867204 + 1617984 = 93198^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (8687485187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120659481 + ... + 120659552.

It is an arithmetic number, because the mean of its divisors is an integer number (1220001783).

Almost surely, 2^8687485188 is an apocalyptic number.

It is an amenable number.

8687485188 is an abundant number, since it is smaller than the sum of its proper divisors (13272546906).

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

8687485188 is a wasteful number, since it uses less digits than its factorization.

8687485188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241319043 (or 241319038 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 63.

The square root of 8687485188 is about 93206.6799537458. The cubic root of 8687485188 is about 2055.7234613327.

The spelling of 8687485188 in words is "eight billion, six hundred eighty-seven million, four hundred eighty-five thousand, one hundred eighty-eight".