389769734947 has 2 divisors, whose sum is σ = 389769734948. Its totient is φ = 389769734946.

The previous prime is 389769734903. The next prime is 389769734971. The reversal of 389769734947 is 749437967983.

It is a strong prime.

It is an emirp because it is prime and its reverse (749437967983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389769734947 - 2⁷ = 389769734819 is a prime.

It is not a weakly prime, because it can be changed into another prime (389769734147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194884867473 + 194884867474.

It is an arithmetic number, because the mean of its divisors is an integer number (194884867474).

Almost surely, 2^389769734947 is an apocalyptic number.

389769734947 is a deficient number, since it is larger than the sum of its proper divisors (1).

389769734947 is an equidigital number, since it uses as much as digits as its factorization.

389769734947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728324864, while the sum is 76.

The spelling of 389769734947 in words is "three hundred eighty-nine billion, seven hundred sixty-nine million, seven hundred thirty-four thousand, nine hundred forty-seven".