8755388778 has 8 divisors (see below), whose sum is σ = 17510777568. Its totient is φ = 2918462924.

The previous prime is 8755388731. The next prime is 8755388783. The reversal of 8755388778 is 8778835578.

8755388778 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

8755388778 is an admirable 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, 729615726 + ... + 729615737.

It is an arithmetic number, because the mean of its divisors is an integer number (2188847196).

Almost surely, 2^8755388778 is an apocalyptic number.

8755388778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8755388778 is a wasteful number, since it uses less digits than its factorization.

8755388778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459231468.

The product of its digits is 105369600, while the sum is 66.

The square root of 8755388778 is about 93570.2344658813. The cubic root of 8755388778 is about 2061.0655857893.

The spelling of 8755388778 in words is "eight billion, seven hundred fifty-five million, three hundred eighty-eight thousand, seven hundred seventy-eight".