71008247904 has 72 divisors (see below), whose sum is σ = 204882302520. Its totient is φ = 21517647360.

The previous prime is 71008247881. The next prime is 71008247941. The reversal of 71008247904 is 40974280017.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3044869 + ... + 3068100.

It is an arithmetic number, because the mean of its divisors is an integer number (2845587535).

Almost surely, 2^71008247904 is an apocalyptic number.

It is an amenable number.

71008247904 is an abundant number, since it is smaller than the sum of its proper divisors (133874054616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71008247904 is a wasteful number, since it uses less digits than its factorization.

71008247904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113004 (or 6112985 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 71008247904 in words is "seventy-one billion, eight million, two hundred forty-seven thousand, nine hundred four".