209605334396 has 6 divisors (see below), whose sum is σ = 366809335200. Its totient is φ = 104802667196.

The previous prime is 209605334381. The next prime is 209605334429. The reversal of 209605334396 is 693433506902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200666796 + ... + 26200666803.

It is an arithmetic number, because the mean of its divisors is an integer number (61134889200).

Almost surely, 2^209605334396 is an apocalyptic number.

It is an amenable number.

209605334396 is a deficient number, since it is larger than the sum of its proper divisors (157204000804).

209605334396 is a wasteful number, since it uses less digits than its factorization.

209605334396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52401333603 (or 52401333601 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 50.

The spelling of 209605334396 in words is "two hundred nine billion, six hundred five million, three hundred thirty-four thousand, three hundred ninety-six".