8660042687 has 4 divisors (see below), whose sum is σ = 8673553536. Its totient is φ = 8646531840.

The previous prime is 8660042683. The next prime is 8660042707. The reversal of 8660042687 is 7862400668.

8660042687 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8660042687 - 2² = 8660042683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8660042683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6754463 + ... + 6755744.

It is an arithmetic number, because the mean of its divisors is an integer number (2168388384).

Almost surely, 2^8660042687 is an apocalyptic number.

8660042687 is a deficient number, since it is larger than the sum of its proper divisors (13510849).

8660042687 is a wasteful number, since it uses less digits than its factorization.

8660042687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13510848.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 8660042687 is about 93059.3503469694. The cubic root of 8660042687 is about 2053.5566010813.

The spelling of 8660042687 in words is "eight billion, six hundred sixty million, forty-two thousand, six hundred eighty-seven".