68842467554765 has 4 divisors (see below), whose sum is σ = 82610961065724. Its totient is φ = 55073974043808.

The previous prime is 68842467554743. The next prime is 68842467554789. The reversal of 68842467554765 is 56745576424886.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25786114468009 + 43056353086756 = 5078003^2 + 6561734^2 .

It is a cyclic number.

It is not a de Polignac number, because 68842467554765 - 2¹⁴ = 68842467538381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6884246755472 + ... + 6884246755481.

It is an arithmetic number, because the mean of its divisors is an integer number (20652740266431).

Almost surely, 2^{68842467554765} is an apocalyptic number.

It is an amenable number.

68842467554765 is a deficient number, since it is larger than the sum of its proper divisors (13768493510959).

68842467554765 is a wasteful number, since it uses less digits than its factorization.

68842467554765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768493510958.

The product of its digits is 10838016000, while the sum is 77.

The spelling of 68842467554765 in words is "sixty-eight trillion, eight hundred forty-two billion, four hundred sixty-seven million, five hundred fifty-four thousand, seven hundred sixty-five".