27655507699 has 2 divisors, whose sum is σ = 27655507700. Its totient is φ = 27655507698.

The previous prime is 27655507667. The next prime is 27655507729. The reversal of 27655507699 is 99670555672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27655507699 - 2⁵ = 27655507667 is a prime.

It is not a weakly prime, because it can be changed into another prime (27655507199) 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, 13827753849 + 13827753850.

It is an arithmetic number, because the mean of its divisors is an integer number (13827753850).

Almost surely, 2^27655507699 is an apocalyptic number.

27655507699 is a deficient number, since it is larger than the sum of its proper divisors (1).

27655507699 is an equidigital number, since it uses as much as digits as its factorization.

27655507699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721000, while the sum is 61.

The spelling of 27655507699 in words is "twenty-seven billion, six hundred fifty-five million, five hundred seven thousand, six hundred ninety-nine".