71030981752 has 16 divisors (see below), whose sum is σ = 137479320000. Its totient is φ = 34369829760.

The previous prime is 71030981711. The next prime is 71030981779. The reversal of 71030981752 is 25718903017.

It is a junction number, because it is equal to n+sod(n) for n = 71030981699 and 71030981708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143207377 + ... + 143207872.

It is an arithmetic number, because the mean of its divisors is an integer number (8592457500).

Almost surely, 2^71030981752 is an apocalyptic number.

It is an amenable number.

71030981752 is a deficient number, since it is larger than the sum of its proper divisors (66448338248).

71030981752 is a wasteful number, since it uses less digits than its factorization.

71030981752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286415286 (or 286415282 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 71030981752 in words is "seventy-one billion, thirty million, nine hundred eighty-one thousand, seven hundred fifty-two".