71711673167 has 4 divisors (see below), whose sum is σ = 71728634520. Its totient is φ = 71694711816.

The previous prime is 71711673157. The next prime is 71711673269. The reversal of 71711673167 is 76137611717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71711673167 - 2²⁰ = 71710624591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71711673157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8474333 + ... + 8482790.

It is an arithmetic number, because the mean of its divisors is an integer number (17932158630).

Almost surely, 2^71711673167 is an apocalyptic number.

71711673167 is a deficient number, since it is larger than the sum of its proper divisors (16961353).

71711673167 is a wasteful number, since it uses less digits than its factorization.

71711673167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961352.

The product of its digits is 259308, while the sum is 47.

The spelling of 71711673167 in words is "seventy-one billion, seven hundred eleven million, six hundred seventy-three thousand, one hundred sixty-seven".