8388434968387 has 2 divisors, whose sum is σ = 8388434968388. Its totient is φ = 8388434968386.

The previous prime is 8388434968283. The next prime is 8388434968421. The reversal of 8388434968387 is 7838694348838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8388434968387 - 2¹¹ = 8388434966339 is a prime.

It is not a weakly prime, because it can be changed into another prime (8388434978387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194217484193 + 4194217484194.

It is an arithmetic number, because the mean of its divisors is an integer number (4194217484194).

Almost surely, 2^{8388434968387} is an apocalyptic number.

8388434968387 is a deficient number, since it is larger than the sum of its proper divisors (1).

8388434968387 is an equidigital number, since it uses as much as digits as its factorization.

8388434968387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5350883328, while the sum is 79.

The spelling of 8388434968387 in words is "eight trillion, three hundred eighty-eight billion, four hundred thirty-four million, nine hundred sixty-eight thousand, three hundred eighty-seven".