68107965289 has 32 divisors (see below), whose sum is σ = 84108648960. Its totient is φ = 53705797632.

The previous prime is 68107965271. The next prime is 68107965337. The reversal of 68107965289 is 98256970186.

It is a cyclic number.

It is not a de Polignac number, because 68107965289 - 2²³ = 68099576681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68107965389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55963209 + ... + 55964425.

It is an arithmetic number, because the mean of its divisors is an integer number (2628395280).

Almost surely, 2^68107965289 is an apocalyptic number.

It is an amenable number.

68107965289 is a deficient number, since it is larger than the sum of its proper divisors (16000683671).

68107965289 is a wasteful number, since it uses less digits than its factorization.

68107965289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 68107965289 in words is "sixty-eight billion, one hundred seven million, nine hundred sixty-five thousand, two hundred eighty-nine".