6404032415453 has 2 divisors, whose sum is σ = 6404032415454. Its totient is φ = 6404032415452.

The previous prime is 6404032415441. The next prime is 6404032415491. The reversal of 6404032415453 is 3545142304046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3305862149209 + 3098170266244 = 1818203^2 + 1760162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6404032415453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6404032415453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6404032415653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202016207726 + 3202016207727.

It is an arithmetic number, because the mean of its divisors is an integer number (3202016207727).

Almost surely, 2^{6404032415453} is an apocalyptic number.

It is an amenable number.

6404032415453 is a deficient number, since it is larger than the sum of its proper divisors (1).

6404032415453 is an equidigital number, since it uses as much as digits as its factorization.

6404032415453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 6404032415453 its reverse (3545142304046), we get a palindrome (9949174719499).

The spelling of 6404032415453 in words is "six trillion, four hundred four billion, thirty-two million, four hundred fifteen thousand, four hundred fifty-three".