4778155484 has 12 divisors (see below), whose sum is σ = 8388661008. Its totient is φ = 2381395200.

The previous prime is 4778155463. The next prime is 4778155489. The reversal of 4778155484 is 4845518774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778155489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919237 + ... + 1921724.

It is an arithmetic number, because the mean of its divisors is an integer number (699055084).

Almost surely, 2^4778155484 is an apocalyptic number.

It is an amenable number.

4778155484 is a deficient number, since it is larger than the sum of its proper divisors (3610505524).

4778155484 is a wasteful number, since it uses less digits than its factorization.

4778155484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841276 (or 3841274 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 53.

The square root of 4778155484 is about 69124.2033154813. The cubic root of 4778155484 is about 1684.3024974576.

The spelling of 4778155484 in words is "four billion, seven hundred seventy-eight million, one hundred fifty-five thousand, four hundred eighty-four".