7868118687 has 64 divisors (see below), whose sum is σ = 13095613440. Its totient is φ = 4128307200.

The previous prime is 7868118677. The next prime is 7868118701.

7868118687 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7868118687 - 2¹⁵ = 7868085919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7868118687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868118607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2266389 + ... + 2269857.

It is an arithmetic number, because the mean of its divisors is an integer number (204618960).

Almost surely, 2^7868118687 is an apocalyptic number.

7868118687 is a deficient number, since it is larger than the sum of its proper divisors (5227494753).

7868118687 is a wasteful number, since it uses less digits than its factorization.

7868118687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824.

The product of its digits is 7225344, while the sum is 60.

The square root of 7868118687 is about 88702.4164665202. The cubic root of 7868118687 is about 1988.9489400892.

The spelling of 7868118687 in words is "seven billion, eight hundred sixty-eight million, one hundred eighteen thousand, six hundred eighty-seven".