71444680704 has 156 divisors (see below), whose sum is σ = 207428884000. Its totient is φ = 23692787712.

The previous prime is 71444680687. The next prime is 71444680711. The reversal of 71444680704 is 40708644417.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71444680704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7331067 + ... + 7340805.

Almost surely, 2^71444680704 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 71444680704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103714442000).

71444680704 is an abundant number, since it is smaller than the sum of its proper divisors (135984203296).

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

71444680704 is a wasteful number, since it uses less digits than its factorization.

71444680704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968 (or 9943 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 71444680704 in words is "seventy-one billion, four hundred forty-four million, six hundred eighty thousand, seven hundred four".