11543552539 has 2 divisors, whose sum is σ = 11543552540. Its totient is φ = 11543552538.

The previous prime is 11543552533. The next prime is 11543552549. The reversal of 11543552539 is 93525534511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11543552539 - 2⁵ = 11543552507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11543552495 and 11543552504.

It is not a weakly prime, because it can be changed into another prime (11543552533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771776269 + 5771776270.

It is an arithmetic number, because the mean of its divisors is an integer number (5771776270).

Almost surely, 2^11543552539 is an apocalyptic number.

11543552539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543552539 is an equidigital number, since it uses as much as digits as its factorization.

11543552539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 43.

The spelling of 11543552539 in words is "eleven billion, five hundred forty-three million, five hundred fifty-two thousand, five hundred thirty-nine".