6855389363 has 2 divisors, whose sum is σ = 6855389364. Its totient is φ = 6855389362.

The previous prime is 6855389351. The next prime is 6855389371. The reversal of 6855389363 is 3639835586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6855389363 - 2⁴ = 6855389347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6855389299 and 6855389308.

It is not a weakly prime, because it can be changed into another prime (6855389063) 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, 3427694681 + 3427694682.

It is an arithmetic number, because the mean of its divisors is an integer number (3427694682).

Almost surely, 2^6855389363 is an apocalyptic number.

6855389363 is a deficient number, since it is larger than the sum of its proper divisors (1).

6855389363 is an equidigital number, since it uses as much as digits as its factorization.

6855389363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13996800, while the sum is 56.

The square root of 6855389363 is about 82797.2787173588. The cubic root of 6855389363 is about 1899.6665493313. Note that the first 3 decimals are identical.

The spelling of 6855389363 in words is "six billion, eight hundred fifty-five million, three hundred eighty-nine thousand, three hundred sixty-three".