68218500087 has 48 divisors (see below), whose sum is σ = 108825733120. Its totient is φ = 41011790400.

The previous prime is 68218499983. The next prime is 68218500109. The reversal of 68218500087 is 78000581286.

68218500087 is a `hidden beast` number, since 68 + 2 + 1 + 8 + 500 + 0 + 87 = 666.

It is not a de Polignac number, because 68218500087 - 2⁷ = 68218499959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68218500587) 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 47 ways as a sum of consecutive naturals, for example, 217878 + ... + 428844.

Almost surely, 2^68218500087 is an apocalyptic number.

68218500087 is a deficient number, since it is larger than the sum of its proper divisors (40607233033).

68218500087 is a wasteful number, since it uses less digits than its factorization.

68218500087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211084 (or 211081 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 68218500087 in words is "sixty-eight billion, two hundred eighteen million, five hundred thousand, eighty-seven".