71171217117 has 72 divisors (see below), whose sum is σ = 139074895232. Its totient is φ = 34128008640.

The previous prime is 71171217101. The next prime is 71171217137.

71171217117 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 71171217117 - 2⁴ = 71171217101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71171217137) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 259993 + ... + 458190.

Almost surely, 2^71171217117 is an apocalyptic number.

71171217117 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

71171217117 is a deficient number, since it is larger than the sum of its proper divisors (67903678115).

71171217117 is a wasteful number, since it uses less digits than its factorization.

71171217117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718231 (or 718217 counting only the distinct ones).

The product of its digits is 4802, while the sum is 36.

The spelling of 71171217117 in words is "seventy-one billion, one hundred seventy-one million, two hundred seventeen thousand, one hundred seventeen".