6413447449 has 2 divisors, whose sum is σ = 6413447450. Its totient is φ = 6413447448.

The previous prime is 6413447413. The next prime is 6413447477. The reversal of 6413447449 is 9447443146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5588609049 + 824838400 = 74757^2 + 28720^2 .

It is a cyclic number.

It is not a de Polignac number, because 6413447449 - 2¹³ = 6413439257 is a prime.

It is a super-2 number, since 2×6413447449² = 82264616362169215202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6413447399 and 6413447408.

It is not a weakly prime, because it can be changed into another prime (6413447849) 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, 3206723724 + 3206723725.

It is an arithmetic number, because the mean of its divisors is an integer number (3206723725).

Almost surely, 2^6413447449 is an apocalyptic number.

It is an amenable number.

6413447449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6413447449 is an equidigital number, since it uses as much as digits as its factorization.

6413447449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 46.

The square root of 6413447449 is about 80084.0024536736. The cubic root of 6413447449 is about 1857.9349889366.

The spelling of 6413447449 in words is "six billion, four hundred thirteen million, four hundred forty-seven thousand, four hundred forty-nine".