6430209959 has 2 divisors, whose sum is σ = 6430209960. Its totient is φ = 6430209958.

The previous prime is 6430209953. The next prime is 6430209967. The reversal of 6430209959 is 9599020346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6430209959 - 2¹² = 6430205863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6430209953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215104979 + 3215104980.

It is an arithmetic number, because the mean of its divisors is an integer number (3215104980).

Almost surely, 2^6430209959 is an apocalyptic number.

6430209959 is a deficient number, since it is larger than the sum of its proper divisors (1).

6430209959 is an equidigital number, since it uses as much as digits as its factorization.

6430209959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 47.

The square root of 6430209959 is about 80188.5899551800. The cubic root of 6430209959 is about 1859.5522449981.

The spelling of 6430209959 in words is "six billion, four hundred thirty million, two hundred nine thousand, nine hundred fifty-nine".