11906250709 has 2 divisors, whose sum is σ = 11906250710. Its totient is φ = 11906250708.

The previous prime is 11906250703. The next prime is 11906250721. The reversal of 11906250709 is 90705260911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11594551684 + 311699025 = 107678^2 + 17655^2 .

It is a cyclic number.

It is not a de Polignac number, because 11906250709 - 2¹¹ = 11906248661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11906250703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5953125354 + 5953125355.

It is an arithmetic number, because the mean of its divisors is an integer number (5953125355).

Almost surely, 2^11906250709 is an apocalyptic number.

It is an amenable number.

11906250709 is a deficient number, since it is larger than the sum of its proper divisors (1).

11906250709 is an equidigital number, since it uses as much as digits as its factorization.

11906250709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 11906250709 in words is "eleven billion, nine hundred six million, two hundred fifty thousand, seven hundred nine".