71248289568 has 48 divisors (see below), whose sum is σ = 187359098976. Its totient is φ = 23707228160.

The previous prime is 71248289561. The next prime is 71248289587. The reversal of 71248289568 is 86598284217.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (71248289561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605073 + ... + 713168.

It is an arithmetic number, because the mean of its divisors is an integer number (3903314562).

Almost surely, 2^71248289568 is an apocalyptic number.

It is an amenable number.

71248289568 is an abundant number, since it is smaller than the sum of its proper divisors (116110809408).

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

71248289568 is a wasteful number, since it uses less digits than its factorization.

71248289568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318817 (or 1318809 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 71248289568 in words is "seventy-one billion, two hundred forty-eight million, two hundred eighty-nine thousand, five hundred sixty-eight".