78793486239 has 8 divisors (see below), whose sum is σ = 113139364912. Its totient is φ = 48488299200.

The previous prime is 78793486231. The next prime is 78793486241. The reversal of 78793486239 is 93268439787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78793486239 - 2³ = 78793486231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78793486239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78793486231) 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, 1010172862 + ... + 1010172939.

It is an arithmetic number, because the mean of its divisors is an integer number (14142420614).

Almost surely, 2^78793486239 is an apocalyptic number.

78793486239 is a deficient number, since it is larger than the sum of its proper divisors (34345878673).

78793486239 is a wasteful number, since it uses less digits than its factorization.

78793486239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020345817.

The product of its digits is 109734912, while the sum is 66.

The spelling of 78793486239 in words is "seventy-eight billion, seven hundred ninety-three million, four hundred eighty-six thousand, two hundred thirty-nine".