1068409685 has 16 divisors (see below), whose sum is σ = 1528955136. Its totient is φ = 700770048.

The previous prime is 1068409679. The next prime is 1068409703. The reversal of 1068409685 is 5869048601.

It is a cyclic number.

It is not a de Polignac number, because 1068409685 - 2⁶ = 1068409621 is a prime.

It is a super-2 number, since 2×1068409685² = 2282998510003598450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 662804 + ... + 664413.

It is an arithmetic number, because the mean of its divisors is an integer number (95559696).

Almost surely, 2^1068409685 is an apocalyptic number.

It is an amenable number.

1068409685 is a deficient number, since it is larger than the sum of its proper divisors (460545451).

1068409685 is a wasteful number, since it uses less digits than its factorization.

1068409685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327252.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1068409685 is about 32686.5367544498. The cubic root of 1068409685 is about 1022.3021450695.

The spelling of 1068409685 in words is "one billion, sixty-eight million, four hundred nine thousand, six hundred eighty-five".