71538242035118 has 16 divisors (see below), whose sum is σ = 109333674820656. Its totient is φ = 35093704064640.

The previous prime is 71538242035111. The next prime is 71538242035121. The reversal of 71538242035118 is 81153024283517.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71538242035111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051558 + ... + 12136118.

It is an arithmetic number, because the mean of its divisors is an integer number (6833354676291).

Almost surely, 2^{71538242035118} is an apocalyptic number.

71538242035118 is a deficient number, since it is larger than the sum of its proper divisors (37795432785538).

71538242035118 is a wasteful number, since it uses less digits than its factorization.

71538242035118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151539.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 71538242035118 in words is "seventy-one trillion, five hundred thirty-eight billion, two hundred forty-two million, thirty-five thousand, one hundred eighteen".