385685586583 has 4 divisors (see below), whose sum is σ = 420747912648. Its totient is φ = 350623260520.

The previous prime is 385685586553. The next prime is 385685586751.

It is a happy number.

385685586583 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385685586583 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 (385685586553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17531163016 + ... + 17531163037.

It is an arithmetic number, because the mean of its divisors is an integer number (105186978162).

Almost surely, 2^385685586583 is an apocalyptic number.

385685586583 is a deficient number, since it is larger than the sum of its proper divisors (35062326065).

385685586583 is a wasteful number, since it uses less digits than its factorization.

385685586583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35062326064.

The product of its digits is 829440000, while the sum is 70.

The spelling of 385685586583 in words is "three hundred eighty-five billion, six hundred eighty-five million, five hundred eighty-six thousand, five hundred eighty-three".