8687271776764 has 96 divisors (see below), whose sum is σ = 18957960806400. Its totient is φ = 3399100044480.

The previous prime is 8687271776723. The next prime is 8687271776767. The reversal of 8687271776764 is 4676771727868.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687271776767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2839587 + ... + 5043589.

It is an arithmetic number, because the mean of its divisors is an integer number (197478758400).

Almost surely, 2^{8687271776764} 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 8687271776764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9478980403200).

8687271776764 is an abundant number, since it is smaller than the sum of its proper divisors (10270689029636).

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

8687271776764 is a wasteful number, since it uses less digits than its factorization.

8687271776764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204303 (or 2204301 counting only the distinct ones).

The product of its digits is 1858719744, while the sum is 76.

The spelling of 8687271776764 in words is "eight trillion, six hundred eighty-seven billion, two hundred seventy-one million, seven hundred seventy-six thousand, seven hundred sixty-four".