27893685671 has 2 divisors, whose sum is σ = 27893685672. Its totient is φ = 27893685670.

The previous prime is 27893685653. The next prime is 27893685709. The reversal of 27893685671 is 17658639872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27893685671 - 2⁶ = 27893685607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27893625671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13946842835 + 13946842836.

It is an arithmetic number, because the mean of its divisors is an integer number (13946842836).

Almost surely, 2^27893685671 is an apocalyptic number.

27893685671 is a deficient number, since it is larger than the sum of its proper divisors (1).

27893685671 is an equidigital number, since it uses as much as digits as its factorization.

27893685671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 62.

The spelling of 27893685671 in words is "twenty-seven billion, eight hundred ninety-three million, six hundred eighty-five thousand, six hundred seventy-one".