8687446868 has 12 divisors (see below), whose sum is σ = 15573837972. Its totient is φ = 4237778880.

The previous prime is 8687446849. The next prime is 8687446871. The reversal of 8687446868 is 8686447868.

It can be written as a sum of positive squares in 2 ways, for example, as 2967852484 + 5719594384 = 54478^2 + 75628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26485955 + ... + 26486282.

It is an arithmetic number, because the mean of its divisors is an integer number (1297819831).

Almost surely, 2^8687446868 is an apocalyptic number.

It is an amenable number.

8687446868 is a deficient number, since it is larger than the sum of its proper divisors (6886391104).

8687446868 is a wasteful number, since it uses less digits than its factorization.

8687446868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52972282 (or 52972280 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 65.

The square root of 8687446868 is about 93206.4743888535. The cubic root of 8687446868 is about 2055.7204387687.

The spelling of 8687446868 in words is "eight billion, six hundred eighty-seven million, four hundred forty-six thousand, eight hundred sixty-eight".