71003444380 has 48 divisors (see below), whose sum is σ = 162732810240. Its totient is φ = 25808264000.

The previous prime is 71003444377. The next prime is 71003444419. The reversal of 71003444380 is 8344430017.

It is a super-2 number, since 2×71003444380² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448581 + ... + 585859.

It is an arithmetic number, because the mean of its divisors is an integer number (3390266880).

Almost surely, 2^71003444380 is an apocalyptic number.

It is an amenable number.

71003444380 is an abundant number, since it is smaller than the sum of its proper divisors (91729365860).

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

71003444380 is a wasteful number, since it uses less digits than its factorization.

71003444380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139650 (or 139648 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 71003444380 its reverse (8344430017), we get a palindrome (79347874397).

The spelling of 71003444380 in words is "seventy-one billion, three million, four hundred forty-four thousand, three hundred eighty".