68888888889 has 8 divisors (see below), whose sum is σ = 91858283232. Its totient is φ = 45922710240.

The previous prime is 68888888881. The next prime is 68888888891. The reversal of 68888888889 is 98888888886.

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

It is not a de Polignac number, because 68888888889 - 2³ = 68888888881 is a prime.

68888888889 is a strobogrammatic number because it is the same when read upside-down.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (68888888881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753484 + ... + 839949.

It is an arithmetic number, because the mean of its divisors is an integer number (11482285404).

Almost surely, 2^68888888889 is an apocalyptic number.

It is an amenable number.

68888888889 is a deficient number, since it is larger than the sum of its proper divisors (22969394343).

68888888889 is a wasteful number, since it uses less digits than its factorization.

68888888889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607847.

The product of its digits is 7247757312, while the sum is 87.

It can be divided in two parts, 688888 and 88889, that added together give a palindrome (777777).

The spelling of 68888888889 in words is "sixty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".