4656578939 has 2 divisors, whose sum is σ = 4656578940. Its totient is φ = 4656578938.

The previous prime is 4656578929. The next prime is 4656578999. The reversal of 4656578939 is 9398756564.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4656578939 - 2⁸ = 4656578683 is a prime.

It is not a weakly prime, because it can be changed into another prime (4656578929) 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, 2328289469 + 2328289470.

It is an arithmetic number, because the mean of its divisors is an integer number (2328289470).

Almost surely, 2^4656578939 is an apocalyptic number.

4656578939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4656578939 is an equidigital number, since it uses as much as digits as its factorization.

4656578939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 62.

The square root of 4656578939 is about 68239.1305557156. The cubic root of 4656578939 is about 1669.8943290733.

The spelling of 4656578939 in words is "four billion, six hundred fifty-six million, five hundred seventy-eight thousand, nine hundred thirty-nine".