1968753739 has 2 divisors, whose sum is σ = 1968753740. Its totient is φ = 1968753738.

The previous prime is 1968753727. The next prime is 1968753763. The reversal of 1968753739 is 9373578691.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9373578691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1968753739 - 2²⁵ = 1935199307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1968703739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984376869 + 984376870.

It is an arithmetic number, because the mean of its divisors is an integer number (984376870).

Almost surely, 2^1968753739 is an apocalyptic number.

1968753739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968753739 is an equidigital number, since it uses as much as digits as its factorization.

1968753739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 58.

The square root of 1968753739 is about 44370.6405069839. The cubic root of 1968753739 is about 1253.3252771680.

The spelling of 1968753739 in words is "one billion, nine hundred sixty-eight million, seven hundred fifty-three thousand, seven hundred thirty-nine".