68361966839 has 8 divisors (see below), whose sum is σ = 72405446688. Its totient is φ = 64320952320.

The previous prime is 68361966811. The next prime is 68361966863. The reversal of 68361966839 is 93866916386.

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 68361966839 - 2¹⁶ = 68361901303 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 (68361968839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559082 + ... + 670295.

It is an arithmetic number, because the mean of its divisors is an integer number (9050680836).

Almost surely, 2^68361966839 is an apocalyptic number.

68361966839 is a deficient number, since it is larger than the sum of its proper divisors (4043479849).

68361966839 is a wasteful number, since it uses less digits than its factorization.

68361966839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232665.

The product of its digits is 60466176, while the sum is 65.

The spelling of 68361966839 in words is "sixty-eight billion, three hundred sixty-one million, nine hundred sixty-six thousand, eight hundred thirty-nine".