87968638587 has 8 divisors (see below), whose sum is σ = 118147661136. Its totient is φ = 58217687552.

The previous prime is 87968638559. The next prime is 87968638607. The reversal of 87968638587 is 78583686978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87968638587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87968638187) 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 7 ways as a sum of consecutive naturals, for example, 107017398 + ... + 107018219.

It is an arithmetic number, because the mean of its divisors is an integer number (14768457642).

Almost surely, 2^87968638587 is an apocalyptic number.

87968638587 is a deficient number, since it is larger than the sum of its proper divisors (30179022549).

87968638587 is a wasteful number, since it uses less digits than its factorization.

87968638587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214035757.

The product of its digits is 975421440, while the sum is 75.

The spelling of 87968638587 in words is "eighty-seven billion, nine hundred sixty-eight million, six hundred thirty-eight thousand, five hundred eighty-seven".