78843335117 has 8 divisors (see below), whose sum is σ = 79110245760. Its totient is φ = 78576510960.

The previous prime is 78843335071. The next prime is 78843335227. The reversal of 78843335117 is 71153334887.

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 78843335117 - 2¹⁶ = 78843269581 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 (78843335317) 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, 2180528 + ... + 2216390.

It is an arithmetic number, because the mean of its divisors is an integer number (9888780720).

Almost surely, 2^78843335117 is an apocalyptic number.

It is an amenable number.

78843335117 is a deficient number, since it is larger than the sum of its proper divisors (266910643).

78843335117 is a wasteful number, since it uses less digits than its factorization.

78843335117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43243.

The product of its digits is 1693440, while the sum is 50.

The spelling of 78843335117 in words is "seventy-eight billion, eight hundred forty-three million, three hundred thirty-five thousand, one hundred seventeen".