8535440809 has 8 divisors (see below), whose sum is σ = 9938842560. Its totient is φ = 7178052336.

The previous prime is 8535440779. The next prime is 8535440819. The reversal of 8535440809 is 9080445358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8535440809 - 2¹³ = 8535432617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8535440819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11502919 + ... + 11503660.

It is an arithmetic number, because the mean of its divisors is an integer number (1242355320).

Almost surely, 2^8535440809 is an apocalyptic number.

It is an amenable number.

8535440809 is a deficient number, since it is larger than the sum of its proper divisors (1403401751).

8535440809 is a wasteful number, since it uses less digits than its factorization.

8535440809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23006639.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 8535440809 is about 92387.4494127855. The cubic root of 8535440809 is about 2043.6600327942.

The spelling of 8535440809 in words is "eight billion, five hundred thirty-five million, four hundred forty thousand, eight hundred nine".