1768285685 has 32 divisors (see below), whose sum is σ = 2318054112. Its totient is φ = 1289502720.

The previous prime is 1768285669. The next prime is 1768285691. The reversal of 1768285685 is 5865828671.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 2353156 + 1765932529 = 1534^2 + 42023^2 .

It is not a de Polignac number, because 1768285685 - 2⁴ = 1768285669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1768285685.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 756779 + ... + 759111.

It is an arithmetic number, because the mean of its divisors is an integer number (72439191).

Almost surely, 2^1768285685 is an apocalyptic number.

It is an amenable number.

1768285685 is a deficient number, since it is larger than the sum of its proper divisors (549768427).

1768285685 is a wasteful number, since it uses less digits than its factorization.

1768285685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633.

The product of its digits is 6451200, while the sum is 56.

The square root of 1768285685 is about 42050.9891084621. The cubic root of 1768285685 is about 1209.2538452346.

The spelling of 1768285685 in words is "one billion, seven hundred sixty-eight million, two hundred eighty-five thousand, six hundred eighty-five".