6243361409 has 2 divisors, whose sum is σ = 6243361410. Its totient is φ = 6243361408.

The previous prime is 6243361331. The next prime is 6243361417. The reversal of 6243361409 is 9041633426.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6162721009 + 80640400 = 78503^2 + 8980^2 .

It is a cyclic number.

It is not a de Polignac number, because 6243361409 - 2²⁴ = 6226584193 is a prime.

It is not a weakly prime, because it can be changed into another prime (6243361429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121680704 + 3121680705.

It is an arithmetic number, because the mean of its divisors is an integer number (3121680705).

Almost surely, 2^6243361409 is an apocalyptic number.

It is an amenable number.

6243361409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6243361409 is an equidigital number, since it uses as much as digits as its factorization.

6243361409 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 38.

The square root of 6243361409 is about 79014.9442131044. The cubic root of 6243361409 is about 1841.3633375179.

The spelling of 6243361409 in words is "six billion, two hundred forty-three million, three hundred sixty-one thousand, four hundred nine".