213009049209 has 8 divisors (see below), whose sum is σ = 309831344352. Its totient is φ = 129096393440.

The previous prime is 213009049199. The next prime is 213009049237. The reversal of 213009049209 is 902940900312.

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 213009049209 - 2⁴ = 213009049193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213009049259) 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, 3227409804 + ... + 3227409869.

It is an arithmetic number, because the mean of its divisors is an integer number (38728918044).

Almost surely, 2^213009049209 is an apocalyptic number.

It is an amenable number.

213009049209 is a deficient number, since it is larger than the sum of its proper divisors (96822295143).

213009049209 is a wasteful number, since it uses less digits than its factorization.

213009049209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454819687.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 213009049209 in words is "two hundred thirteen billion, nine million, forty-nine thousand, two hundred nine".