4878854509 has 2 divisors, whose sum is σ = 4878854510. Its totient is φ = 4878854508.

The previous prime is 4878854489. The next prime is 4878854537. The reversal of 4878854509 is 9054588784.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4757964484 + 120890025 = 68978^2 + 10995^2 .

It is a cyclic number.

It is not a de Polignac number, because 4878854509 - 2²⁷ = 4744636781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4878854809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439427254 + 2439427255.

It is an arithmetic number, because the mean of its divisors is an integer number (2439427255).

Almost surely, 2^4878854509 is an apocalyptic number.

It is an amenable number.

4878854509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878854509 is an equidigital number, since it uses as much as digits as its factorization.

4878854509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12902400, while the sum is 58.

The square root of 4878854509 is about 69848.7974771220. The cubic root of 4878854509 is about 1696.0524911303.

The spelling of 4878854509 in words is "four billion, eight hundred seventy-eight million, eight hundred fifty-four thousand, five hundred nine".