71584044212 has 12 divisors (see below), whose sum is σ = 126781380096. Its totient is φ = 35360792760.

The previous prime is 71584044197. The next prime is 71584044229. The reversal of 71584044212 is 21244048517.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 107806964 + ... + 107807627.

It is an arithmetic number, because the mean of its divisors is an integer number (10565115008).

Almost surely, 2^71584044212 is an apocalyptic number.

It is an amenable number.

71584044212 is a deficient number, since it is larger than the sum of its proper divisors (55197335884).

71584044212 is a wasteful number, since it uses less digits than its factorization.

71584044212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215614678 (or 215614676 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The spelling of 71584044212 in words is "seventy-one billion, five hundred eighty-four million, forty-four thousand, two hundred twelve".