11995709393 has 2 divisors, whose sum is σ = 11995709394. Its totient is φ = 11995709392.

The previous prime is 11995709387. The next prime is 11995709477. The reversal of 11995709393 is 39390759911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7995399889 + 4000309504 = 89417^2 + 63248^2 .

It is a cyclic number.

It is not a de Polignac number, because 11995709393 - 2⁸ = 11995709137 is a prime.

It is not a weakly prime, because it can be changed into another prime (11995709293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5997854696 + 5997854697.

It is an arithmetic number, because the mean of its divisors is an integer number (5997854697).

Almost surely, 2^11995709393 is an apocalyptic number.

It is an amenable number.

11995709393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11995709393 is an equidigital number, since it uses as much as digits as its factorization.

11995709393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2066715, while the sum is 56.

The spelling of 11995709393 in words is "eleven billion, nine hundred ninety-five million, seven hundred nine thousand, three hundred ninety-three".