6622943429 has 2 divisors, whose sum is σ = 6622943430. Its totient is φ = 6622943428.

The previous prime is 6622943407. The next prime is 6622943443. The reversal of 6622943429 is 9243492266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6564726529 + 58216900 = 81023^2 + 7630^2 .

It is a cyclic number.

It is not a de Polignac number, because 6622943429 - 2¹² = 6622939333 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 (6622943489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311471714 + 3311471715.

It is an arithmetic number, because the mean of its divisors is an integer number (3311471715).

Almost surely, 2^6622943429 is an apocalyptic number.

It is an amenable number.

6622943429 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622943429 is an equidigital number, since it uses as much as digits as its factorization.

6622943429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 47.

The square root of 6622943429 is about 81381.4685846846. The cubic root of 6622943429 is about 1877.9485156554.

The spelling of 6622943429 in words is "six billion, six hundred twenty-two million, nine hundred forty-three thousand, four hundred twenty-nine".