6434613389 has 2 divisors, whose sum is σ = 6434613390. Its totient is φ = 6434613388.

The previous prime is 6434613329. The next prime is 6434613391. The reversal of 6434613389 is 9833164346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6139976164 + 294637225 = 78358^2 + 17165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6434613389 is a prime.

Together with 6434613391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6434613319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217306694 + 3217306695.

It is an arithmetic number, because the mean of its divisors is an integer number (3217306695).

Almost surely, 2^6434613389 is an apocalyptic number.

It is an amenable number.

6434613389 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434613389 is an equidigital number, since it uses as much as digits as its factorization.

6434613389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 47.

The square root of 6434613389 is about 80216.0419679256. The cubic root of 6434613389 is about 1859.9766240751.

The spelling of 6434613389 in words is "six billion, four hundred thirty-four million, six hundred thirteen thousand, three hundred eighty-nine".