71536048169 has 2 divisors, whose sum is σ = 71536048170. Its totient is φ = 71536048168.

The previous prime is 71536048153. The next prime is 71536048189. The reversal of 71536048169 is 96184063517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57756105625 + 13779942544 = 240325^2 + 117388^2 .

It is an emirp because it is prime and its reverse (96184063517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71536048169 - 2⁴ = 71536048153 is a prime.

It is a super-2 number, since 2×71536048169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71536048189) 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, 35768024084 + 35768024085.

It is an arithmetic number, because the mean of its divisors is an integer number (35768024085).

Almost surely, 2^71536048169 is an apocalyptic number.

It is an amenable number.

71536048169 is a deficient number, since it is larger than the sum of its proper divisors (1).

71536048169 is an equidigital number, since it uses as much as digits as its factorization.

71536048169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 71536048169 in words is "seventy-one billion, five hundred thirty-six million, forty-eight thousand, one hundred sixty-nine".