27533457769 has 2 divisors, whose sum is σ = 27533457770. Its totient is φ = 27533457768.

The previous prime is 27533457751. The next prime is 27533457827. The reversal of 27533457769 is 96775433572.

It is an a-pointer prime, because the next prime (27533457827) can be obtained adding 27533457769 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26859276544 + 674181225 = 163888^2 + 25965^2 .

It is a cyclic number.

It is not a de Polignac number, because 27533457769 - 2¹⁹ = 27532933481 is a prime.

It is a super-2 number, since 2×27533457769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27533457569) 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, 13766728884 + 13766728885.

It is an arithmetic number, because the mean of its divisors is an integer number (13766728885).

Almost surely, 2^27533457769 is an apocalyptic number.

It is an amenable number.

27533457769 is a deficient number, since it is larger than the sum of its proper divisors (1).

27533457769 is an equidigital number, since it uses as much as digits as its factorization.

27533457769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33339600, while the sum is 58.

The spelling of 27533457769 in words is "twenty-seven billion, five hundred thirty-three million, four hundred fifty-seven thousand, seven hundred sixty-nine".