2009745559 has 8 divisors (see below), whose sum is σ = 2201344560. Its totient is φ = 1826299776.

The previous prime is 2009745557. The next prime is 2009745581. The reversal of 2009745559 is 9555479002.

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

It is a cyclic number.

It is not a de Polignac number, because 2009745559 - 2¹ = 2009745557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009745557) 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 in 7 ways as a sum of consecutive naturals, for example, 2037789 + ... + 2038774.

It is an arithmetic number, because the mean of its divisors is an integer number (275168070).

Almost surely, 2^2009745559 is an apocalyptic number.

2009745559 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2009745559 is a deficient number, since it is larger than the sum of its proper divisors (191599001).

2009745559 is a wasteful number, since it uses less digits than its factorization.

2009745559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076609.

The product of its (nonzero) digits is 567000, while the sum is 46.

The square root of 2009745559 is about 44830.1858015333. The cubic root of 2009745559 is about 1261.9641740696.

It can be divided in two parts, 20097 and 45559, that added together give a palindrome (65656).

The spelling of 2009745559 in words is "two billion, nine million, seven hundred forty-five thousand, five hundred fifty-nine".