71813258131168 has 24 divisors (see below), whose sum is σ = 144830701995840. Its totient is φ = 35030857624320.

The previous prime is 71813258131163. The next prime is 71813258131211. The reversal of 71813258131168 is 86113185231817.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71813258131163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27367856208 + ... + 27367858831.

It is an arithmetic number, because the mean of its divisors is an integer number (6034612583160).

Almost surely, 2^{71813258131168} is an apocalyptic number.

It is an amenable number.

71813258131168 is an abundant number, since it is smaller than the sum of its proper divisors (73017443864672).

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

71813258131168 is a wasteful number, since it uses less digits than its factorization.

71813258131168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54735715090 (or 54735715082 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 55.

The spelling of 71813258131168 in words is "seventy-one trillion, eight hundred thirteen billion, two hundred fifty-eight million, one hundred thirty-one thousand, one hundred sixty-eight".