71158540912 has 10 divisors (see below), whose sum is σ = 137869673048. Its totient is φ = 35579270448.

The previous prime is 71158540907. The next prime is 71158540949. The reversal of 71158540912 is 21904585117.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2223704388 + ... + 2223704419.

Almost surely, 2^71158540912 is an apocalyptic number.

It is an amenable number.

71158540912 is a deficient number, since it is larger than the sum of its proper divisors (66711132136).

71158540912 is a wasteful number, since it uses less digits than its factorization.

71158540912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4447408815 (or 4447408809 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 71158540912 in words is "seventy-one billion, one hundred fifty-eight million, five hundred forty thousand, nine hundred twelve".