6397694887027 has 2 divisors, whose sum is σ = 6397694887028. Its totient is φ = 6397694887026.

The previous prime is 6397694887009. The next prime is 6397694887081. The reversal of 6397694887027 is 7207884967936.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6397694887027 is a prime.

It is not a weakly prime, because it can be changed into another prime (6397694887097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198847443513 + 3198847443514.

It is an arithmetic number, because the mean of its divisors is an integer number (3198847443514).

Almost surely, 2^{6397694887027} is an apocalyptic number.

6397694887027 is a deficient number, since it is larger than the sum of its proper divisors (1).

6397694887027 is an equidigital number, since it uses as much as digits as its factorization.

6397694887027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536288768, while the sum is 76.

The spelling of 6397694887027 in words is "six trillion, three hundred ninety-seven billion, six hundred ninety-four million, eight hundred eighty-seven thousand, twenty-seven".