6630423409 has 2 divisors, whose sum is σ = 6630423410. Its totient is φ = 6630423408.

The previous prime is 6630423391. The next prime is 6630423427. The reversal of 6630423409 is 9043240366.

It is a balanced prime because it is at equal distance from previous prime (6630423391) and next prime (6630423427).

It can be written as a sum of positive squares in only one way, i.e., 5224398400 + 1406025009 = 72280^2 + 37497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6630423409 is a prime.

It is not a weakly prime, because it can be changed into another prime (6630423479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315211704 + 3315211705.

It is an arithmetic number, because the mean of its divisors is an integer number (3315211705).

Almost surely, 2^6630423409 is an apocalyptic number.

It is an amenable number.

6630423409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630423409 is an equidigital number, since it uses as much as digits as its factorization.

6630423409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 6630423409 is about 81427.4119016440. The cubic root of 6630423409 is about 1878.6552372992.

The spelling of 6630423409 in words is "six billion, six hundred thirty million, four hundred twenty-three thousand, four hundred nine".