6855491956627 has 2 divisors, whose sum is σ = 6855491956628. Its totient is φ = 6855491956626.

The previous prime is 6855491956601. The next prime is 6855491956661. The reversal of 6855491956627 is 7266591945586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6855491956627 - 2⁷ = 6855491956499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6855491956627.

It is not a weakly prime, because it can be changed into another prime (6855491956727) 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, 3427745978313 + 3427745978314.

It is an arithmetic number, because the mean of its divisors is an integer number (3427745978314).

Almost surely, 2^{6855491956627} is an apocalyptic number.

6855491956627 is a deficient number, since it is larger than the sum of its proper divisors (1).

6855491956627 is an equidigital number, since it uses as much as digits as its factorization.

6855491956627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776000, while the sum is 73.

The spelling of 6855491956627 in words is "six trillion, eight hundred fifty-five billion, four hundred ninety-one million, nine hundred fifty-six thousand, six hundred twenty-seven".