4878254639 has 2 divisors, whose sum is σ = 4878254640. Its totient is φ = 4878254638.

The previous prime is 4878254599. The next prime is 4878254653. The reversal of 4878254639 is 9364528784.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4878254639 - 2¹² = 4878250543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4878254039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439127319 + 2439127320.

It is an arithmetic number, because the mean of its divisors is an integer number (2439127320).

Almost surely, 2^4878254639 is an apocalyptic number.

4878254639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878254639 is an equidigital number, since it uses as much as digits as its factorization.

4878254639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 56.

The square root of 4878254639 is about 69844.5032840810. The cubic root of 4878254639 is about 1695.9829766772.

The spelling of 4878254639 in words is "four billion, eight hundred seventy-eight million, two hundred fifty-four thousand, six hundred thirty-nine".