27773820163 has 2 divisors, whose sum is σ = 27773820164. Its totient is φ = 27773820162.

The previous prime is 27773820103. The next prime is 27773820167. The reversal of 27773820163 is 36102837772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27773820163 is a prime.

It is not a weakly prime, because it can be changed into another prime (27773820167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13886910081 + 13886910082.

It is an arithmetic number, because the mean of its divisors is an integer number (13886910082).

Almost surely, 2^27773820163 is an apocalyptic number.

27773820163 is a deficient number, since it is larger than the sum of its proper divisors (1).

27773820163 is an equidigital number, since it uses as much as digits as its factorization.

27773820163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 27773820163 in words is "twenty-seven billion, seven hundred seventy-three million, eight hundred twenty thousand, one hundred sixty-three".