4939316509 has 2 divisors, whose sum is σ = 4939316510. Its totient is φ = 4939316508.

The previous prime is 4939316491. The next prime is 4939316531. The reversal of 4939316509 is 9056139394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4938997284 + 319225 = 70278^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 4939316509 - 2²⁵ = 4905762077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4939316549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469658254 + 2469658255.

It is an arithmetic number, because the mean of its divisors is an integer number (2469658255).

Almost surely, 2^4939316509 is an apocalyptic number.

It is an amenable number.

4939316509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4939316509 is an equidigital number, since it uses as much as digits as its factorization.

4939316509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 49.

The square root of 4939316509 is about 70280.2711221293. The cubic root of 4939316509 is about 1703.0299492689.

The spelling of 4939316509 in words is "four billion, nine hundred thirty-nine million, three hundred sixteen thousand, five hundred nine".