71739138141 has 12 divisors (see below), whose sum is σ = 113043490560. Its totient is φ = 43478265480.

The previous prime is 71739138137. The next prime is 71739138227. The reversal of 71739138141 is 14183193717.

It is not a de Polignac number, because 71739138141 - 2² = 71739138137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71739138131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362318781 + ... + 362318978.

It is an arithmetic number, because the mean of its divisors is an integer number (9420290880).

Almost surely, 2^71739138141 is an apocalyptic number.

It is an amenable number.

71739138141 is a deficient number, since it is larger than the sum of its proper divisors (41304352419).

71739138141 is a wasteful number, since it uses less digits than its factorization.

71739138141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724637776 (or 724637773 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The spelling of 71739138141 in words is "seventy-one billion, seven hundred thirty-nine million, one hundred thirty-eight thousand, one hundred forty-one".