11785436239 has 2 divisors, whose sum is σ = 11785436240. Its totient is φ = 11785436238.

The previous prime is 11785436231. The next prime is 11785436249. The reversal of 11785436239 is 93263458711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11785436239 - 2³ = 11785436231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11785436192 and 11785436201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11785436231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5892718119 + 5892718120.

It is an arithmetic number, because the mean of its divisors is an integer number (5892718120).

Almost surely, 2^11785436239 is an apocalyptic number.

11785436239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11785436239 is an equidigital number, since it uses as much as digits as its factorization.

11785436239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 11785436239 in words is "eleven billion, seven hundred eighty-five million, four hundred thirty-six thousand, two hundred thirty-nine".