6424061209 has 2 divisors, whose sum is σ = 6424061210. Its totient is φ = 6424061208.

The previous prime is 6424061197. The next prime is 6424061257. The reversal of 6424061209 is 9021604246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5368785984 + 1055275225 = 73272^2 + 32485^2 .

It is a cyclic number.

It is not a de Polignac number, because 6424061209 - 2⁷ = 6424061081 is a prime.

It is not a weakly prime, because it can be changed into another prime (6424061009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212030604 + 3212030605.

It is an arithmetic number, because the mean of its divisors is an integer number (3212030605).

Almost surely, 2^6424061209 is an apocalyptic number.

It is an amenable number.

6424061209 is a deficient number, since it is larger than the sum of its proper divisors (1).

6424061209 is an equidigital number, since it uses as much as digits as its factorization.

6424061209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 6424061209 is about 80150.2414781141. The cubic root of 6424061209 is about 1858.9593370237.

The spelling of 6424061209 in words is "six billion, four hundred twenty-four million, sixty-one thousand, two hundred nine".