1968333909 has 8 divisors (see below), whose sum is σ = 2667469152. Its totient is φ = 1290710640.

The previous prime is 1968333893. The next prime is 1968333911. The reversal of 1968333909 is 9093338691.

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

It is not a de Polignac number, because 1968333909 - 2⁴ = 1968333893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968333929) 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, 5377779 + ... + 5378144.

It is an arithmetic number, because the mean of its divisors is an integer number (333433644).

Almost surely, 2^1968333909 is an apocalyptic number.

It is an amenable number.

1968333909 is a deficient number, since it is larger than the sum of its proper divisors (699135243).

1968333909 is a wasteful number, since it uses less digits than its factorization.

1968333909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10755987.

The product of its (nonzero) digits is 944784, while the sum is 51.

The square root of 1968333909 is about 44365.9093110916. The cubic root of 1968333909 is about 1253.2361817253.

The spelling of 1968333909 in words is "one billion, nine hundred sixty-eight million, three hundred thirty-three thousand, nine hundred nine".