7424649809 has 2 divisors, whose sum is σ = 7424649810. Its totient is φ = 7424649808.

The previous prime is 7424649769. The next prime is 7424649821. The reversal of 7424649809 is 9089464247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7422339409 + 2310400 = 86153^2 + 1520^2 .

It is a cyclic number.

It is not a de Polignac number, because 7424649809 - 2³² = 3129682513 is a prime.

It is not a weakly prime, because it can be changed into another prime (7424649839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3712324904 + 3712324905.

It is an arithmetic number, because the mean of its divisors is an integer number (3712324905).

Almost surely, 2^7424649809 is an apocalyptic number.

It is an amenable number.

7424649809 is a deficient number, since it is larger than the sum of its proper divisors (1).

7424649809 is an equidigital number, since it uses as much as digits as its factorization.

7424649809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The square root of 7424649809 is about 86166.4076598299. The cubic root of 7424649809 is about 1950.8564993963.

The spelling of 7424649809 in words is "seven billion, four hundred twenty-four million, six hundred forty-nine thousand, eight hundred nine".