71244444217 has 8 divisors (see below), whose sum is σ = 73901980800. Its totient is φ = 68600296464.

The previous prime is 71244444181. The next prime is 71244444287.

It is a happy number.

71244444217 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 71244444217 - 2²³ = 71236055609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71244444217.

It is not an unprimeable number, because it can be changed into a prime (71244444287) 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, 3336367 + ... + 3357652.

It is an arithmetic number, because the mean of its divisors is an integer number (9237747600).

Almost surely, 2^71244444217 is an apocalyptic number.

It is an amenable number.

71244444217 is a deficient number, since it is larger than the sum of its proper divisors (2657536583).

71244444217 is a wasteful number, since it uses less digits than its factorization.

71244444217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694415.

The product of its digits is 200704, while the sum is 40.

The spelling of 71244444217 in words is "seventy-one billion, two hundred forty-four million, four hundred forty-four thousand, two hundred seventeen".