8205713210785 has 8 divisors (see below), whose sum is σ = 9861797975040. Its totient is φ = 6554609153904.

The previous prime is 8205713210741. The next prime is 8205713210809. The reversal of 8205713210785 is 5870123175028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8205713210785 - 2¹⁵ = 8205713178017 is a prime.

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, 1245173217 + ... + 1245179806.

It is an arithmetic number, because the mean of its divisors is an integer number (1232724746880).

Almost surely, 2^{8205713210785} is an apocalyptic number.

It is an amenable number.

8205713210785 is a deficient number, since it is larger than the sum of its proper divisors (1656084764255).

8205713210785 is a wasteful number, since it uses less digits than its factorization.

8205713210785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490353687.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 8205713210785 in words is "eight trillion, two hundred five billion, seven hundred thirteen million, two hundred ten thousand, seven hundred eighty-five".