6855102271729 has 2 divisors, whose sum is σ = 6855102271730. Its totient is φ = 6855102271728.

The previous prime is 6855102271541. The next prime is 6855102271747. The reversal of 6855102271729 is 9271722015586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6855102150625 + 121104 = 2618225^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 6855102271729 - 2⁹ = 6855102271217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6855102271729.

It is not a weakly prime, because it can be changed into another prime (6855102271229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3427551135864 + 3427551135865.

It is an arithmetic number, because the mean of its divisors is an integer number (3427551135865).

Almost surely, 2^{6855102271729} is an apocalyptic number.

It is an amenable number.

6855102271729 is a deficient number, since it is larger than the sum of its proper divisors (1).

6855102271729 is an equidigital number, since it uses as much as digits as its factorization.

6855102271729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 6855102271729 in words is "six trillion, eight hundred fifty-five billion, one hundred two million, two hundred seventy-one thousand, seven hundred twenty-nine".