27786429163 has 2 divisors, whose sum is σ = 27786429164. Its totient is φ = 27786429162.

The previous prime is 27786429107. The next prime is 27786429169. The reversal of 27786429163 is 36192468772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27786429163 is a prime.

It is not a weakly prime, because it can be changed into another prime (27786429169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13893214581 + 13893214582.

It is an arithmetic number, because the mean of its divisors is an integer number (13893214582).

Almost surely, 2^27786429163 is an apocalyptic number.

27786429163 is a deficient number, since it is larger than the sum of its proper divisors (1).

27786429163 is an equidigital number, since it uses as much as digits as its factorization.

27786429163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 55.

The spelling of 27786429163 in words is "twenty-seven billion, seven hundred eighty-six million, four hundred twenty-nine thousand, one hundred sixty-three".