71447443417 has 8 divisors (see below), whose sum is σ = 81660082176. Its totient is φ = 61236269952.

The previous prime is 71447443399. The next prime is 71447443423. The reversal of 71447443417 is 71434474417.

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-71447443417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71447443477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259768 + ... + 458665.

It is an arithmetic number, because the mean of its divisors is an integer number (10207510272).

Almost surely, 2^71447443417 is an apocalyptic number.

It is an amenable number.

71447443417 is a deficient number, since it is larger than the sum of its proper divisors (10212638759).

71447443417 is a wasteful number, since it uses less digits than its factorization.

71447443417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732647.

The product of its digits is 1053696, while the sum is 46.

The spelling of 71447443417 in words is "seventy-one billion, four hundred forty-seven million, four hundred forty-three thousand, four hundred seventeen".