11884724209 has 2 divisors, whose sum is σ = 11884724210. Its totient is φ = 11884724208.

The previous prime is 11884724183. The next prime is 11884724251. The reversal of 11884724209 is 90242748811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8248272400 + 3636451809 = 90820^2 + 60303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11884724209 is a prime.

It is not a weakly prime, because it can be changed into another prime (11884724279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5942362104 + 5942362105.

It is an arithmetic number, because the mean of its divisors is an integer number (5942362105).

Almost surely, 2^11884724209 is an apocalyptic number.

It is an amenable number.

11884724209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11884724209 is an equidigital number, since it uses as much as digits as its factorization.

11884724209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 11884724209 in words is "eleven billion, eight hundred eighty-four million, seven hundred twenty-four thousand, two hundred nine".