7071716386985 has 16 divisors (see below), whose sum is σ = 9016177521600. Its totient is φ = 5309526747456.

The previous prime is 7071716386979. The next prime is 7071716387009. The reversal of 7071716386985 is 5896836171707.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7071716386985 - 2¹⁴ = 7071716370601 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 347836190 + ... + 347856519.

It is an arithmetic number, because the mean of its divisors is an integer number (563511095100).

Almost surely, 2^{7071716386985} is an apocalyptic number.

It is an amenable number.

7071716386985 is a deficient number, since it is larger than the sum of its proper divisors (1944461134615).

7071716386985 is a wasteful number, since it uses less digits than its factorization.

7071716386985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695692840.

The product of its (nonzero) digits is 106686720, while the sum is 68.

The spelling of 7071716386985 in words is "seven trillion, seventy-one billion, seven hundred sixteen million, three hundred eighty-six thousand, nine hundred eighty-five".