68775057786 has 8 divisors (see below), whose sum is σ = 137550115584. Its totient is φ = 22925019260.

The previous prime is 68775057713. The next prime is 68775057787.

It is a happy number.

68775057786 is nontrivially palindromic in base 10.

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

68775057786 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68775057787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5731254810 + ... + 5731254821.

It is an arithmetic number, because the mean of its divisors is an integer number (17193764448).

Almost surely, 2^68775057786 is an apocalyptic number.

68775057786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68775057786 is a wasteful number, since it uses less digits than its factorization.

68775057786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462509636.

The product of its (nonzero) digits is 138297600, while the sum is 66.

The spelling of 68775057786 in words is "sixty-eight billion, seven hundred seventy-five million, fifty-seven thousand, seven hundred eighty-six".