6866270849 has 2 divisors, whose sum is σ = 6866270850. Its totient is φ = 6866270848.

The previous prime is 6866270797. The next prime is 6866270897. The reversal of 6866270849 is 9480726686.

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., 4169026624 + 2697244225 = 64568^2 + 51935^2 .

It is a cyclic number.

It is not a de Polignac number, because 6866270849 - 2²⁸ = 6597835393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6866270794 and 6866270803.

It is not a weakly prime, because it can be changed into another prime (6866270149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3433135424 + 3433135425.

It is an arithmetic number, because the mean of its divisors is an integer number (3433135425).

Almost surely, 2^6866270849 is an apocalyptic number.

It is an amenable number.

6866270849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6866270849 is an equidigital number, since it uses as much as digits as its factorization.

6866270849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The square root of 6866270849 is about 82862.9642783795. The cubic root of 6866270849 is about 1900.6711247802.

The spelling of 6866270849 in words is "six billion, eight hundred sixty-six million, two hundred seventy thousand, eight hundred forty-nine".