84865310717 has 16 divisors (see below), whose sum is σ = 98592904512. Its totient is φ = 72192280320.

The previous prime is 84865310693. The next prime is 84865310729. The reversal of 84865310717 is 71701356848.

It is a cyclic number.

It is not a de Polignac number, because 84865310717 - 2⁶ = 84865310653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84865310017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279283 + ... + 1343984.

It is an arithmetic number, because the mean of its divisors is an integer number (6162056532).

Almost surely, 2^84865310717 is an apocalyptic number.

It is an amenable number.

84865310717 is a deficient number, since it is larger than the sum of its proper divisors (13727593795).

84865310717 is a wasteful number, since it uses less digits than its factorization.

84865310717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623468.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 84865310717 in words is "eighty-four billion, eight hundred sixty-five million, three hundred ten thousand, seven hundred seventeen".