71117968206 has 16 divisors (see below), whose sum is σ = 142241446224. Its totient is φ = 23705071104.

The previous prime is 71117968171. The next prime is 71117968289. The reversal of 71117968206 is 60286971117.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51105 + ... + 380588.

It is an arithmetic number, because the mean of its divisors is an integer number (8890090389).

Almost surely, 2^71117968206 is an apocalyptic number.

71117968206 is an abundant number, since it is smaller than the sum of its proper divisors (71123478018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71117968206 is a wasteful number, since it uses less digits than its factorization.

71117968206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459155.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 71117968206 in words is "seventy-one billion, one hundred seventeen million, nine hundred sixty-eight thousand, two hundred six".