85680707659 has 8 divisors (see below), whose sum is σ = 90930273840. Its totient is φ = 80454422016.

The previous prime is 85680707653. The next prime is 85680707753. The reversal of 85680707659 is 95670708658.

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 85680707659 - 2¹⁹ = 85680183371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85680707597 and 85680707606.

It is not an unprimeable number, because it can be changed into a prime (85680707653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5812549 + ... + 5827270.

It is an arithmetic number, because the mean of its divisors is an integer number (11366284230).

Almost surely, 2^85680707659 is an apocalyptic number.

85680707659 is a deficient number, since it is larger than the sum of its proper divisors (5249566181).

85680707659 is a wasteful number, since it uses less digits than its factorization.

85680707659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640269.

The product of its (nonzero) digits is 25401600, while the sum is 61.

Subtracting 85680707659 from its reverse (95670708658), we obtain a palindrome (9990000999).

The spelling of 85680707659 in words is "eighty-five billion, six hundred eighty million, seven hundred seven thousand, six hundred fifty-nine".