1368683909 has 8 divisors (see below), whose sum is σ = 1408894080. Its totient is φ = 1328643216.

The previous prime is 1368683903. The next prime is 1368683917. The reversal of 1368683909 is 9093868631.

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 1368683909 - 2¹² = 1368679813 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 (1368683903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25889 + ... + 58374.

It is an arithmetic number, because the mean of its divisors is an integer number (176111760).

Almost surely, 2^1368683909 is an apocalyptic number.

It is an amenable number.

1368683909 is a deficient number, since it is larger than the sum of its proper divisors (40210171).

1368683909 is an equidigital number, since it uses as much as digits as its factorization.

1368683909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84739.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 1368683909 is about 36995.7282534079. The cubic root of 1368683909 is about 1110.2847817849.

The spelling of 1368683909 in words is "one billion, three hundred sixty-eight million, six hundred eighty-three thousand, nine hundred nine".