6403344300641 has 2 divisors, whose sum is σ = 6403344300642. Its totient is φ = 6403344300640.

The previous prime is 6403344300623. The next prime is 6403344300659. The reversal of 6403344300641 is 1460034433046.

It is a balanced prime because it is at equal distance from previous prime (6403344300623) and next prime (6403344300659).

It can be written as a sum of positive squares in only one way, i.e., 6121591414225 + 281752886416 = 2474185^2 + 530804^2 .

It is a cyclic number.

It is not a de Polignac number, because 6403344300641 - 2³⁸ = 6128466393697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6403344300595 and 6403344300604.

It is not a weakly prime, because it can be changed into another prime (6403344300611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3201672150320 + 3201672150321.

It is an arithmetic number, because the mean of its divisors is an integer number (3201672150321).

Almost surely, 2^{6403344300641} is an apocalyptic number.

It is an amenable number.

6403344300641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6403344300641 is an equidigital number, since it uses as much as digits as its factorization.

6403344300641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 6403344300641 its reverse (1460034433046), we get a palindrome (7863378733687).

The spelling of 6403344300641 in words is "six trillion, four hundred three billion, three hundred forty-four million, three hundred thousand, six hundred forty-one".