68066918769 has 8 divisors (see below), whose sum is σ = 91559041632. Its totient is φ = 44976370880.

The previous prime is 68066918753. The next prime is 68066918827. The reversal of 68066918769 is 96781966086.

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 68066918769 - 2⁴ = 68066918753 is a prime.

It is a super-2 number, since 2×68066918769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68066918719) by changing a digit.

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, 100393347 + ... + 100394024.

It is an arithmetic number, because the mean of its divisors is an integer number (11444880204).

Almost surely, 2^68066918769 is an apocalyptic number.

It is an amenable number.

68066918769 is a deficient number, since it is larger than the sum of its proper divisors (23492122863).

68066918769 is a wasteful number, since it uses less digits than its factorization.

68066918769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200787487.

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 68066918769 in words is "sixty-eight billion, sixty-six million, nine hundred eighteen thousand, seven hundred sixty-nine".