2785467779 has 2 divisors, whose sum is σ = 2785467780. Its totient is φ = 2785467778.

The previous prime is 2785467761. The next prime is 2785467787. The reversal of 2785467779 is 9777645872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2785467779 - 2¹² = 2785463683 is a prime.

It is not a weakly prime, because it can be changed into another prime (2785460779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392733889 + 1392733890.

It is an arithmetic number, because the mean of its divisors is an integer number (1392733890).

Almost surely, 2^2785467779 is an apocalyptic number.

2785467779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785467779 is an equidigital number, since it uses as much as digits as its factorization.

2785467779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41489280, while the sum is 62.

The square root of 2785467779 is about 52777.5310051541. The cubic root of 2785467779 is about 1407.0171132633.

The spelling of 2785467779 in words is "two billion, seven hundred eighty-five million, four hundred sixty-seven thousand, seven hundred seventy-nine".