8424068809 has 6 divisors (see below), whose sum is σ = 9121920846. Its totient is φ = 7776063360.

The previous prime is 8424068797. The next prime is 8424068843. The reversal of 8424068809 is 9088604248.

It can be written as a sum of positive squares in 3 ways, for example, as 444577225 + 7979491584 = 21085^2 + 89328^2 .

It is not a de Polignac number, because 8424068809 - 2¹⁵ = 8424036041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8424068879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24923112 + ... + 24923449.

It is an arithmetic number, because the mean of its divisors is an integer number (1520320141).

Almost surely, 2^8424068809 is an apocalyptic number.

It is an amenable number.

8424068809 is a deficient number, since it is larger than the sum of its proper divisors (697852037).

8424068809 is a wasteful number, since it uses less digits than its factorization.

8424068809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49846587 (or 49846574 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The square root of 8424068809 is about 91782.7260926586. The cubic root of 8424068809 is about 2034.7324058188.

The spelling of 8424068809 in words is "eight billion, four hundred twenty-four million, sixty-eight thousand, eight hundred nine".