71775164147 has 2 divisors, whose sum is σ = 71775164148. Its totient is φ = 71775164146.

The previous prime is 71775164129. The next prime is 71775164203. The reversal of 71775164147 is 74146157717.

It is a weak prime.

It is an emirp because it is prime and its reverse (74146157717) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71775164147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71775164095 and 71775164104.

It is not a weakly prime, because it can be changed into another prime (71775164117) 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, 35887582073 + 35887582074.

It is an arithmetic number, because the mean of its divisors is an integer number (35887582074).

Almost surely, 2^71775164147 is an apocalyptic number.

71775164147 is a deficient number, since it is larger than the sum of its proper divisors (1).

71775164147 is an equidigital number, since it uses as much as digits as its factorization.

71775164147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152480, while the sum is 50.

The spelling of 71775164147 in words is "seventy-one billion, seven hundred seventy-five million, one hundred sixty-four thousand, one hundred forty-seven".