389626191047 has 2 divisors, whose sum is σ = 389626191048. Its totient is φ = 389626191046.

The previous prime is 389626190977. The next prime is 389626191049. The reversal of 389626191047 is 740191626983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389626191047 - 2¹² = 389626186951 is a prime.

Together with 389626191049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 389626190983 and 389626191001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389626191049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194813095523 + 194813095524.

It is an arithmetic number, because the mean of its divisors is an integer number (194813095524).

Almost surely, 2^389626191047 is an apocalyptic number.

389626191047 is a deficient number, since it is larger than the sum of its proper divisors (1).

389626191047 is an equidigital number, since it uses as much as digits as its factorization.

389626191047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 389626191047 in words is "three hundred eighty-nine billion, six hundred twenty-six million, one hundred ninety-one thousand, forty-seven".