218068678339 has 8 divisors (see below), whose sum is σ = 219312628992. Its totient is φ = 216825792960.

The previous prime is 218068678327. The next prime is 218068678357. The reversal of 218068678339 is 933876860812.

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

It is a cyclic number.

It is not a de Polignac number, because 218068678339 - 2¹¹ = 218068676291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218068678319) 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, 146077 + ... + 676369.

It is an arithmetic number, because the mean of its divisors is an integer number (27414078624).

Almost surely, 2^218068678339 is an apocalyptic number.

218068678339 is a deficient number, since it is larger than the sum of its proper divisors (1243950653).

218068678339 is a wasteful number, since it uses less digits than its factorization.

218068678339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532637.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 218068678339 in words is "two hundred eighteen billion, sixty-eight million, six hundred seventy-eight thousand, three hundred thirty-nine".