11539202287 has 2 divisors, whose sum is σ = 11539202288. Its totient is φ = 11539202286.

The previous prime is 11539202267. The next prime is 11539202317. The reversal of 11539202287 is 78220293511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11539202287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11539202267) 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, 5769601143 + 5769601144.

It is an arithmetic number, because the mean of its divisors is an integer number (5769601144).

Almost surely, 2^11539202287 is an apocalyptic number.

11539202287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11539202287 is an equidigital number, since it uses as much as digits as its factorization.

11539202287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

Adding to 11539202287 its reverse (78220293511), we get a palindrome (89759495798).

The spelling of 11539202287 in words is "eleven billion, five hundred thirty-nine million, two hundred two thousand, two hundred eighty-seven".