6878752249 has 2 divisors, whose sum is σ = 6878752250. Its totient is φ = 6878752248.

The previous prime is 6878752189. The next prime is 6878752277. The reversal of 6878752249 is 9422578786.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6477030400 + 401721849 = 80480^2 + 20043^2 .

It is a cyclic number.

It is not a de Polignac number, because 6878752249 - 2¹¹ = 6878750201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6878752193 and 6878752202.

It is not a weakly prime, because it can be changed into another prime (6878755249) 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, 3439376124 + 3439376125.

It is an arithmetic number, because the mean of its divisors is an integer number (3439376125).

Almost surely, 2^6878752249 is an apocalyptic number.

It is an amenable number.

6878752249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6878752249 is an equidigital number, since it uses as much as digits as its factorization.

6878752249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 58.

The square root of 6878752249 is about 82938.2435852122. The cubic root of 6878752249 is about 1901.8220977582.

The spelling of 6878752249 in words is "six billion, eight hundred seventy-eight million, seven hundred fifty-two thousand, two hundred forty-nine".