71095799897 has 2 divisors, whose sum is σ = 71095799898. Its totient is φ = 71095799896.

The previous prime is 71095799893. The next prime is 71095799899. The reversal of 71095799897 is 79899759017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56424776521 + 14671023376 = 237539^2 + 121124^2 .

It is a cyclic number.

It is not a de Polignac number, because 71095799897 - 2² = 71095799893 is a prime.

It is a super-2 number, since 2×71095799897² (a number of 23 digits) contains 22 as substring.

Together with 71095799899, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71095799897.

It is not a weakly prime, because it can be changed into another prime (71095799893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35547899948 + 35547899949.

It is an arithmetic number, because the mean of its divisors is an integer number (35547899949).

Almost surely, 2^71095799897 is an apocalyptic number.

It is an amenable number.

71095799897 is a deficient number, since it is larger than the sum of its proper divisors (1).

71095799897 is an equidigital number, since it uses as much as digits as its factorization.

71095799897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90016920, while the sum is 71.

The spelling of 71095799897 in words is "seventy-one billion, ninety-five million, seven hundred ninety-nine thousand, eight hundred ninety-seven".