6779784074858 has 16 divisors (see below), whose sum is σ = 11170353625920. Its totient is φ = 3071847246336.

The previous prime is 6779784074813. The next prime is 6779784074939. The reversal of 6779784074858 is 8584704879776.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3878594135 + ... + 3878595882.

It is an arithmetic number, because the mean of its divisors is an integer number (698147101620).

Almost surely, 2^{6779784074858} is an apocalyptic number.

6779784074858 is a deficient number, since it is larger than the sum of its proper divisors (4390569551062).

6779784074858 is a wasteful number, since it uses less digits than its factorization.

6779784074858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757190061.

The product of its (nonzero) digits is 5310627840, while the sum is 80.

The spelling of 6779784074858 in words is "six trillion, seven hundred seventy-nine billion, seven hundred eighty-four million, seventy-four thousand, eight hundred fifty-eight".