2002196509 has 8 divisors (see below), whose sum is σ = 2012256000. Its totient is φ = 1992157200.

The previous prime is 2002196507. The next prime is 2002196543. The reversal of 2002196509 is 9056912002.

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 2002196509 - 2¹ = 2002196507 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 (2002196507) 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, 217992 + ... + 226990.

It is an arithmetic number, because the mean of its divisors is an integer number (251532000).

Almost surely, 2^2002196509 is an apocalyptic number.

It is an amenable number.

2002196509 is a deficient number, since it is larger than the sum of its proper divisors (10059491).

2002196509 is an equidigital number, since it uses as much as digits as its factorization.

2002196509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10091.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 2002196509 is about 44745.9105282259. The cubic root of 2002196509 is about 1260.3821191332.

The spelling of 2002196509 in words is "two billion, two million, one hundred ninety-six thousand, five hundred nine".