71844244817 has 16 divisors (see below), whose sum is σ = 77077344960. Its totient is φ = 66757159872.

The previous prime is 71844244811. The next prime is 71844244847.

71844244817 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 71844244817 - 2²⁰ = 71843196241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71844244811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3693038 + ... + 3712440.

It is an arithmetic number, because the mean of its divisors is an integer number (4817334060).

Almost surely, 2^71844244817 is an apocalyptic number.

It is an amenable number.

71844244817 is a deficient number, since it is larger than the sum of its proper divisors (5233100143).

71844244817 is a wasteful number, since it uses less digits than its factorization.

71844244817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23152.

The product of its digits is 1605632, while the sum is 50.

The spelling of 71844244817 in words is "seventy-one billion, eight hundred forty-four million, two hundred forty-four thousand, eight hundred seventeen".