27825778067 has 2 divisors, whose sum is σ = 27825778068. Its totient is φ = 27825778066.

The previous prime is 27825778039. The next prime is 27825778091. The reversal of 27825778067 is 76087752872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27825778067 - 2¹² = 27825773971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27825777997 and 27825778015.

It is not a weakly prime, because it can be changed into another prime (27825738067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13912889033 + 13912889034.

It is an arithmetic number, because the mean of its divisors is an integer number (13912889034).

Almost surely, 2^27825778067 is an apocalyptic number.

27825778067 is a deficient number, since it is larger than the sum of its proper divisors (1).

27825778067 is an equidigital number, since it uses as much as digits as its factorization.

27825778067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18439680, while the sum is 59.

The spelling of 27825778067 in words is "twenty-seven billion, eight hundred twenty-five million, seven hundred seventy-eight thousand, sixty-seven".