68186559780863 has 8 divisors (see below), whose sum is σ = 68209239499632. Its totient is φ = 68163880669696.

The previous prime is 68186559780853. The next prime is 68186559780907. The reversal of 68186559780863 is 36808795568186.

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 68186559780863 - 2⁶ = 68186559780799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68186559780853) 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, 379320881 + ... + 379500597.

It is an arithmetic number, because the mean of its divisors is an integer number (8526154937454).

Almost surely, 2^{68186559780863} is an apocalyptic number.

68186559780863 is a deficient number, since it is larger than the sum of its proper divisors (22679718769).

68186559780863 is a wasteful number, since it uses less digits than its factorization.

68186559780863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303801.

The product of its (nonzero) digits is 4180377600, while the sum is 80.

The spelling of 68186559780863 in words is "sixty-eight trillion, one hundred eighty-six billion, five hundred fifty-nine million, seven hundred eighty thousand, eight hundred sixty-three".