4778555339 has 2 divisors, whose sum is σ = 4778555340. Its totient is φ = 4778555338.

The previous prime is 4778555333. The next prime is 4778555401. The reversal of 4778555339 is 9335558774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4778555339 - 2²⁴ = 4761778123 is a prime.

It is a super-2 number, since 2×4778555339² = 45669182255770809842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4778555333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389277669 + 2389277670.

It is an arithmetic number, because the mean of its divisors is an integer number (2389277670).

Almost surely, 2^4778555339 is an apocalyptic number.

4778555339 is a deficient number, since it is larger than the sum of its proper divisors (1).

4778555339 is an equidigital number, since it uses as much as digits as its factorization.

4778555339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876000, while the sum is 56.

The square root of 4778555339 is about 69127.0955487065. The cubic root of 4778555339 is about 1684.3494791846.

The spelling of 4778555339 in words is "four billion, seven hundred seventy-eight million, five hundred fifty-five thousand, three hundred thirty-nine".