71124416197 has 4 divisors (see below), whose sum is σ = 72637701696. Its totient is φ = 69611130700.

The previous prime is 71124416177. The next prime is 71124416221. The reversal of 71124416197 is 79161442117.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71124416197 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 (71124416107) 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, 756642679 + ... + 756642772.

It is an arithmetic number, because the mean of its divisors is an integer number (18159425424).

Almost surely, 2^71124416197 is an apocalyptic number.

It is an amenable number.

71124416197 is a deficient number, since it is larger than the sum of its proper divisors (1513285499).

71124416197 is a wasteful number, since it uses less digits than its factorization.

71124416197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513285498.

The product of its digits is 84672, while the sum is 43.

The spelling of 71124416197 in words is "seventy-one billion, one hundred twenty-four million, four hundred sixteen thousand, one hundred ninety-seven".