71039038742 has 16 divisors (see below), whose sum is σ = 121984531200. Its totient is φ = 30394471848.

The previous prime is 71039038717. The next prime is 71039038769. The reversal of 71039038742 is 24783093017.

It is a junction number, because it is equal to n+sod(n) for n = 71039038693 and 71039038702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4227188 + ... + 4243959.

It is an arithmetic number, because the mean of its divisors is an integer number (7624033200).

Almost surely, 2^71039038742 is an apocalyptic number.

71039038742 is a deficient number, since it is larger than the sum of its proper divisors (50945492458).

71039038742 is a wasteful number, since it uses less digits than its factorization.

71039038742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471755.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 71039038742 in words is "seventy-one billion, thirty-nine million, thirty-eight thousand, seven hundred forty-two".