8687660544 has 120 divisors (see below), whose sum is σ = 25180432992. Its totient is φ = 2883502080.

The previous prime is 8687660447. The next prime is 8687660551. The reversal of 8687660544 is 4450667868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1106617 + ... + 1114439.

Almost surely, 2^8687660544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8687660544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12590216496).

8687660544 is an abundant number, since it is smaller than the sum of its proper divisors (16492772448).

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

8687660544 is a wasteful number, since it uses less digits than its factorization.

8687660544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The square root of 8687660544 is about 93207.6206326500. The cubic root of 8687660544 is about 2055.7372927622.

The spelling of 8687660544 in words is "eight billion, six hundred eighty-seven million, six hundred sixty thousand, five hundred forty-four".