71040142636 has 12 divisors (see below), whose sum is σ = 124363451520. Its totient is φ = 35507727920.

The previous prime is 71040142631. The next prime is 71040142651. The reversal of 71040142636 is 63624104017.

It is not an unprimeable number, because it can be changed into a prime (71040142631) 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, 3072895 + ... + 3095926.

It is an arithmetic number, because the mean of its divisors is an integer number (10363620960).

Almost surely, 2^71040142636 is an apocalyptic number.

It is an amenable number.

71040142636 is a deficient number, since it is larger than the sum of its proper divisors (53323308884).

71040142636 is a wasteful number, since it uses less digits than its factorization.

71040142636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171704 (or 6171702 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 71040142636 in words is "seventy-one billion, forty million, one hundred forty-two thousand, six hundred thirty-six".