71057041171 has 6 divisors (see below), whose sum is σ = 73591775972. Its totient is φ = 68606797560.

The previous prime is 71057041141. The next prime is 71057041177. The reversal of 71057041171 is 17114075017.

It is a happy number.

It is not a de Polignac number, because 71057041171 - 2²⁷ = 70922823443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71057041177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42244725 + ... + 42246406.

Almost surely, 2^71057041171 is an apocalyptic number.

71057041171 is a deficient number, since it is larger than the sum of its proper divisors (2534734801).

71057041171 is an equidigital number, since it uses as much as digits as its factorization.

71057041171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84491189 (or 84491160 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 34.

The spelling of 71057041171 in words is "seventy-one billion, fifty-seven million, forty-one thousand, one hundred seventy-one".