6447412133 has 2 divisors, whose sum is σ = 6447412134. Its totient is φ = 6447412132.

The previous prime is 6447412117. The next prime is 6447412229. The reversal of 6447412133 is 3312147446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6367720804 + 79691329 = 79798^2 + 8927^2 .

It is a cyclic number.

It is not a de Polignac number, because 6447412133 - 2⁴ = 6447412117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6447412093 and 6447412102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6447412033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223706066 + 3223706067.

It is an arithmetic number, because the mean of its divisors is an integer number (3223706067).

Almost surely, 2^6447412133 is an apocalyptic number.

It is an amenable number.

6447412133 is a deficient number, since it is larger than the sum of its proper divisors (1).

6447412133 is an equidigital number, since it uses as much as digits as its factorization.

6447412133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 35.

The square root of 6447412133 is about 80295.7790484656. The cubic root of 6447412133 is about 1861.2090005632.

Adding to 6447412133 its reverse (3312147446), we get a palindrome (9759559579).

The spelling of 6447412133 in words is "six billion, four hundred forty-seven million, four hundred twelve thousand, one hundred thirty-three".