71195745712 has 160 divisors (see below), whose sum is σ = 171839251584. Its totient is φ = 27824947200.

The previous prime is 71195745703. The next prime is 71195745713. The reversal of 71195745712 is 21754759117.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71195745713) 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 31 ways as a sum of consecutive naturals, for example, 48072012 + ... + 48073492.

Almost surely, 2^71195745712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71195745712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85919625792).

71195745712 is an abundant number, since it is smaller than the sum of its proper divisors (100643505872).

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

71195745712 is a wasteful number, since it uses less digits than its factorization.

71195745712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1881 counting only the distinct ones).

The product of its digits is 617400, while the sum is 49.

The spelling of 71195745712 in words is "seventy-one billion, one hundred ninety-five million, seven hundred forty-five thousand, seven hundred twelve".