71171611207 has 8 divisors (see below), whose sum is σ = 72846732816. Its totient is φ = 69497397312.

The previous prime is 71171611201. The next prime is 71171611211. The reversal of 71171611207 is 70211617117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71171611207 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 (71171611201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66958 + ... + 383179.

It is an arithmetic number, because the mean of its divisors is an integer number (9105841602).

Almost surely, 2^71171611207 is an apocalyptic number.

71171611207 is a deficient number, since it is larger than the sum of its proper divisors (1675121609).

71171611207 is a wasteful number, since it uses less digits than its factorization.

71171611207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453857.

The product of its (nonzero) digits is 4116, while the sum is 34.

The spelling of 71171611207 in words is "seventy-one billion, one hundred seventy-one million, six hundred eleven thousand, two hundred seven".