6564447932429 has 2 divisors, whose sum is σ = 6564447932430. Its totient is φ = 6564447932428.

The previous prime is 6564447932377. The next prime is 6564447932461. The reversal of 6564447932429 is 9242397444656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5442539055625 + 1121908876804 = 2332925^2 + 1059202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6564447932429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6564447938429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282223966214 + 3282223966215.

It is an arithmetic number, because the mean of its divisors is an integer number (3282223966215).

Almost surely, 2^{6564447932429} is an apocalyptic number.

It is an amenable number.

6564447932429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564447932429 is an equidigital number, since it uses as much as digits as its factorization.

6564447932429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313528320, while the sum is 65.

The spelling of 6564447932429 in words is "six trillion, five hundred sixty-four billion, four hundred forty-seven million, nine hundred thirty-two thousand, four hundred twenty-nine".