6434008504421 has 2 divisors, whose sum is σ = 6434008504422. Its totient is φ = 6434008504420.

The previous prime is 6434008504387. The next prime is 6434008504457. The reversal of 6434008504421 is 1244058004346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6001083983521 + 432924520900 = 2449711^2 + 657970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6434008504421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6434008501421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3217004252210 + 3217004252211.

It is an arithmetic number, because the mean of its divisors is an integer number (3217004252211).

Almost surely, 2^{6434008504421} is an apocalyptic number.

It is an amenable number.

6434008504421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6434008504421 is an equidigital number, since it uses as much as digits as its factorization.

6434008504421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 6434008504421 in words is "six trillion, four hundred thirty-four billion, eight million, five hundred four thousand, four hundred twenty-one".