778135283 has 2 divisors, whose sum is σ = 778135284. Its totient is φ = 778135282.

The previous prime is 778135231. The next prime is 778135297. The reversal of 778135283 is 382531877.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 778135283 - 2²⁶ = 711026419 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (778135213) 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, 389067641 + 389067642.

It is an arithmetic number, because the mean of its divisors is an integer number (389067642).

Almost surely, 2^778135283 is an apocalyptic number.

778135283 is a deficient number, since it is larger than the sum of its proper divisors (1).

778135283 is an equidigital number, since it uses as much as digits as its factorization.

778135283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 778135283 is about 27895.0763218171. The cubic root of 778135283 is about 919.7822748009.

The spelling of 778135283 in words is "seven hundred seventy-eight million, one hundred thirty-five thousand, two hundred eighty-three".