27816316807 has 2 divisors, whose sum is σ = 27816316808. Its totient is φ = 27816316806.

The previous prime is 27816316799. The next prime is 27816316819. The reversal of 27816316807 is 70861361872.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27816316807 - 2³ = 27816316799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27816316867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13908158403 + 13908158404.

It is an arithmetic number, because the mean of its divisors is an integer number (13908158404).

Almost surely, 2^27816316807 is an apocalyptic number.

27816316807 is a deficient number, since it is larger than the sum of its proper divisors (1).

27816316807 is an equidigital number, since it uses as much as digits as its factorization.

27816316807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 27816316807 in words is "twenty-seven billion, eight hundred sixteen million, three hundred sixteen thousand, eight hundred seven".