4792778509 has 2 divisors, whose sum is σ = 4792778510. Its totient is φ = 4792778508.

The previous prime is 4792778491. The next prime is 4792778531. The reversal of 4792778509 is 9058772974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4596162025 + 196616484 = 67795^2 + 14022^2 .

It is a cyclic number.

It is not a de Polignac number, because 4792778509 - 2⁷ = 4792778381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4792776509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2396389254 + 2396389255.

It is an arithmetic number, because the mean of its divisors is an integer number (2396389255).

Almost surely, 2^4792778509 is an apocalyptic number.

It is an amenable number.

4792778509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4792778509 is an equidigital number, since it uses as much as digits as its factorization.

4792778509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The square root of 4792778509 is about 69229.8960637671. The cubic root of 4792778509 is about 1686.0189558163.

The spelling of 4792778509 in words is "four billion, seven hundred ninety-two million, seven hundred seventy-eight thousand, five hundred nine".