67271770117 has 2 divisors, whose sum is σ = 67271770118. Its totient is φ = 67271770116.

The previous prime is 67271770103. The next prime is 67271770129. The reversal of 67271770117 is 71107717276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63870431076 + 3401339041 = 252726^2 + 58321^2 .

It is a cyclic number.

It is not a de Polignac number, because 67271770117 - 2⁷ = 67271769989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67271770717) 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, 33635885058 + 33635885059.

It is an arithmetic number, because the mean of its divisors is an integer number (33635885059).

Almost surely, 2^67271770117 is an apocalyptic number.

It is an amenable number.

67271770117 is a deficient number, since it is larger than the sum of its proper divisors (1).

67271770117 is an equidigital number, since it uses as much as digits as its factorization.

67271770117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201684, while the sum is 46.

The spelling of 67271770117 in words is "sixty-seven billion, two hundred seventy-one million, seven hundred seventy thousand, one hundred seventeen".