71709366986 has 16 divisors (see below), whose sum is σ = 113922910080. Its totient is φ = 33736232640.

The previous prime is 71709366979. The next prime is 71709367001. The reversal of 71709366986 is 68966390717.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166976 + ... + 413883.

It is an arithmetic number, because the mean of its divisors is an integer number (7120181880).

Almost surely, 2^71709366986 is an apocalyptic number.

71709366986 is a deficient number, since it is larger than the sum of its proper divisors (42213543094).

71709366986 is a wasteful number, since it uses less digits than its factorization.

71709366986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584509.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 71709366986 in words is "seventy-one billion, seven hundred nine million, three hundred sixty-six thousand, nine hundred eighty-six".