82704908611585 has 24 divisors (see below), whose sum is σ = 107469630062784. Its totient is φ = 61073151347520.

The previous prime is 82704908611529. The next prime is 82704908611597. The reversal of 82704908611585 is 58511680940728.

It is a de Polignac number, because none of the positive numbers 2^k-82704908611585 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41636890 + ... + 43577980.

It is an arithmetic number, because the mean of its divisors is an integer number (4477901252616).

Almost surely, 2^{82704908611585} is an apocalyptic number.

It is an amenable number.

82704908611585 is a deficient number, since it is larger than the sum of its proper divisors (24764721451199).

82704908611585 is a wasteful number, since it uses less digits than its factorization.

82704908611585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991545 (or 1991532 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 64.

The spelling of 82704908611585 in words is "eighty-two trillion, seven hundred four billion, nine hundred eight million, six hundred eleven thousand, five hundred eighty-five".