71288757892 has 12 divisors (see below), whose sum is σ = 136096719696. Its totient is φ = 32403980840.

The previous prime is 71288757887. The next prime is 71288757893. The reversal of 71288757892 is 29875788217.

It is not an unprimeable number, because it can be changed into a prime (71288757893) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 810099478 + ... + 810099565.

It is an arithmetic number, because the mean of its divisors is an integer number (11341393308).

Almost surely, 2^71288757892 is an apocalyptic number.

It is an amenable number.

71288757892 is a deficient number, since it is larger than the sum of its proper divisors (64807961804).

71288757892 is a wasteful number, since it uses less digits than its factorization.

71288757892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620199058 (or 1620199056 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 64.

The spelling of 71288757892 in words is "seventy-one billion, two hundred eighty-eight million, seven hundred fifty-seven thousand, eight hundred ninety-two".