27585452663 has 2 divisors, whose sum is σ = 27585452664. Its totient is φ = 27585452662.

The previous prime is 27585452639. The next prime is 27585452681. The reversal of 27585452663 is 36625458572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27585452663 is a prime.

It is a super-2 number, since 2×27585452663² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27585452603) 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, 13792726331 + 13792726332.

It is an arithmetic number, because the mean of its divisors is an integer number (13792726332).

Almost surely, 2^27585452663 is an apocalyptic number.

27585452663 is a deficient number, since it is larger than the sum of its proper divisors (1).

27585452663 is an equidigital number, since it uses as much as digits as its factorization.

27585452663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 53.

The spelling of 27585452663 in words is "twenty-seven billion, five hundred eighty-five million, four hundred fifty-two thousand, six hundred sixty-three".