1068389609 has 8 divisors (see below), whose sum is σ = 1263120960. Its totient is φ = 884184336.

The previous prime is 1068389593. The next prime is 1068389617. The reversal of 1068389609 is 9069838601.

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

It is not a de Polignac number, because 1068389609 - 2⁴ = 1068389593 is a prime.

It is a super-2 number, since 2×1068389609² = 2282912713238345762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068389809) 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 7 ways as a sum of consecutive naturals, for example, 2631299 + ... + 2631704.

It is an arithmetic number, because the mean of its divisors is an integer number (157890120).

Almost surely, 2^1068389609 is an apocalyptic number.

It is an amenable number.

1068389609 is a deficient number, since it is larger than the sum of its proper divisors (194731351).

1068389609 is an equidigital number, since it uses as much as digits as its factorization.

1068389609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263039.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 1068389609 is about 32686.2296540913. The cubic root of 1068389609 is about 1022.2957418246.

The spelling of 1068389609 in words is "one billion, sixty-eight million, three hundred eighty-nine thousand, six hundred nine".