209671384696 has 16 divisors (see below), whose sum is σ = 393154239600. Its totient is φ = 104830254144.

The previous prime is 209671384693. The next prime is 209671384709. The reversal of 209671384696 is 696483176902.

209671384696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209671384691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513525 + ... + 826468.

It is an arithmetic number, because the mean of its divisors is an integer number (24572139975).

Almost surely, 2^209671384696 is an apocalyptic number.

It is an amenable number.

209671384696 is a deficient number, since it is larger than the sum of its proper divisors (183482854904).

209671384696 is a wasteful number, since it uses less digits than its factorization.

209671384696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359558 (or 1359554 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 209671384696 in words is "two hundred nine billion, six hundred seventy-one million, three hundred eighty-four thousand, six hundred ninety-six".