68785858786 has 4 divisors (see below), whose sum is σ = 103178788182. Its totient is φ = 34392929392.

The previous prime is 68785858781. The next prime is 68785858787.

68785858786 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41916420225 + 26869438561 = 204735^2 + 163919^2 .

It is not an unprimeable number, because it can be changed into a prime (68785858781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17196464695 + ... + 17196464698.

Almost surely, 2^68785858786 is an apocalyptic number.

68785858786 is a deficient number, since it is larger than the sum of its proper divisors (34392929396).

68785858786 is a wasteful number, since it uses less digits than its factorization.

68785858786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34392929395.

The product of its digits is 1445068800, while the sum is 76.

The spelling of 68785858786 in words is "sixty-eight billion, seven hundred eighty-five million, eight hundred fifty-eight thousand, seven hundred eighty-six".