68218500185 has 8 divisors (see below), whose sum is σ = 89304218496. Its totient is φ = 49613454640.

The previous prime is 68218500169. The next prime is 68218500241. The reversal of 68218500185 is 58100581286.

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

It is not a de Polignac number, because 68218500185 - 2⁴ = 68218500169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620168129 + ... + 620168238.

It is an arithmetic number, because the mean of its divisors is an integer number (11163027312).

Almost surely, 2^68218500185 is an apocalyptic number.

It is an amenable number.

68218500185 is a deficient number, since it is larger than the sum of its proper divisors (21085718311).

68218500185 is a wasteful number, since it uses less digits than its factorization.

68218500185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240336383.

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 68218500185 in words is "sixty-eight billion, two hundred eighteen million, five hundred thousand, one hundred eighty-five".