7855220336878 has 8 divisors (see below), whose sum is σ = 11800082089368. Its totient is φ = 3921859640424.

The previous prime is 7855220336849. The next prime is 7855220336893. The reversal of 7855220336878 is 8786330225587.

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

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, 2875262301 + ... + 2875265032.

It is an arithmetic number, because the mean of its divisors is an integer number (1475010261171).

Almost surely, 2^{7855220336878} is an apocalyptic number.

7855220336878 is a deficient number, since it is larger than the sum of its proper divisors (3944861752490).

7855220336878 is a wasteful number, since it uses less digits than its factorization.

7855220336878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750528018.

The product of its (nonzero) digits is 135475200, while the sum is 64.

The spelling of 7855220336878 in words is "seven trillion, eight hundred fifty-five billion, two hundred twenty million, three hundred thirty-six thousand, eight hundred seventy-eight".