4878778784 has 48 divisors (see below), whose sum is σ = 10486596960. Its totient is φ = 2215868160.

The previous prime is 4878778781. The next prime is 4878778823.

4878778784 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (4878778781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506687 + ... + 516225.

It is an arithmetic number, because the mean of its divisors is an integer number (218470770).

Almost surely, 2^4878778784 is an apocalyptic number.

4878778784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4878778784 is an abundant number, since it is smaller than the sum of its proper divisors (5607818176).

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

4878778784 is a wasteful number, since it uses less digits than its factorization.

4878778784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11013 (or 11005 counting only the distinct ones).

The product of its digits is 157351936, while the sum is 68.

The square root of 4878778784 is about 69848.2554112843. The cubic root of 4878778784 is about 1696.0437162400.

The spelling of 4878778784 in words is "four billion, eight hundred seventy-eight million, seven hundred seventy-eight thousand, seven hundred eighty-four".