389406500027 has 2 divisors, whose sum is σ = 389406500028. Its totient is φ = 389406500026.

The previous prime is 389406499957. The next prime is 389406500029. The reversal of 389406500027 is 720005604983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389406500027 - 2¹⁰ = 389406499003 is a prime.

Together with 389406500029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389406500029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194703250013 + 194703250014.

It is an arithmetic number, because the mean of its divisors is an integer number (194703250014).

Almost surely, 2^389406500027 is an apocalyptic number.

389406500027 is a deficient number, since it is larger than the sum of its proper divisors (1).

389406500027 is an equidigital number, since it uses as much as digits as its factorization.

389406500027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 389406500027 in words is "three hundred eighty-nine billion, four hundred six million, five hundred thousand, twenty-seven".