27725361667 has 2 divisors, whose sum is σ = 27725361668. Its totient is φ = 27725361666.

The previous prime is 27725361649. The next prime is 27725361683. The reversal of 27725361667 is 76616352772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27725361667 - 2¹⁵ = 27725328899 is a prime.

It is not a weakly prime, because it can be changed into another prime (27725361607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13862680833 + 13862680834.

It is an arithmetic number, because the mean of its divisors is an integer number (13862680834).

Almost surely, 2^27725361667 is an apocalyptic number.

27725361667 is a deficient number, since it is larger than the sum of its proper divisors (1).

27725361667 is an equidigital number, since it uses as much as digits as its factorization.

27725361667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 52.

The spelling of 27725361667 in words is "twenty-seven billion, seven hundred twenty-five million, three hundred sixty-one thousand, six hundred sixty-seven".