71910161197 has 8 divisors (see below), whose sum is σ = 82184916416. Its totient is φ = 61635874752.

The previous prime is 71910161131. The next prime is 71910161209. The reversal of 71910161197 is 79116101917.

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-71910161197 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 (71910161117) 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, 320533 + ... + 496549.

It is an arithmetic number, because the mean of its divisors is an integer number (10273114552).

Almost surely, 2^71910161197 is an apocalyptic number.

It is an amenable number.

71910161197 is a deficient number, since it is larger than the sum of its proper divisors (10274755219).

71910161197 is a wasteful number, since it uses less digits than its factorization.

71910161197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234387.

The product of its (nonzero) digits is 23814, while the sum is 43.

The spelling of 71910161197 in words is "seventy-one billion, nine hundred ten million, one hundred sixty-one thousand, one hundred ninety-seven".