71716698237 has 4 divisors (see below), whose sum is σ = 95622264320. Its totient is φ = 47811132156.

The previous prime is 71716698167. The next prime is 71716698239. The reversal of 71716698237 is 73289661717.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 71716698237 - 2³⁰ = 70642956413 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 (71716698239) 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, 11952783037 + ... + 11952783042.

It is an arithmetic number, because the mean of its divisors is an integer number (23905566080).

Almost surely, 2^71716698237 is an apocalyptic number.

It is an amenable number.

71716698237 is a deficient number, since it is larger than the sum of its proper divisors (23905566083).

71716698237 is a wasteful number, since it uses less digits than its factorization.

71716698237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23905566082.

The product of its digits is 5334336, while the sum is 57.

The spelling of 71716698237 in words is "seventy-one billion, seven hundred sixteen million, six hundred ninety-eight thousand, two hundred thirty-seven".