209641513433 has 8 divisors (see below), whose sum is σ = 230797997760. Its totient is φ = 188834723280.

The previous prime is 209641513429. The next prime is 209641513441. The reversal of 209641513433 is 334315146902.

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 209641513433 - 2² = 209641513429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (209641513463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87422285 + ... + 87424682.

It is an arithmetic number, because the mean of its divisors is an integer number (28849749720).

Almost surely, 2^209641513433 is an apocalyptic number.

It is an amenable number.

209641513433 is a deficient number, since it is larger than the sum of its proper divisors (21156484327).

209641513433 is a wasteful number, since it uses less digits than its factorization.

209641513433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174847087.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 209641513433 in words is "two hundred nine billion, six hundred forty-one million, five hundred thirteen thousand, four hundred thirty-three".