209928376748 has 12 divisors (see below), whose sum is σ = 388984933512. Its totient is φ = 98789824320.

The previous prime is 209928376709. The next prime is 209928376817. The reversal of 209928376748 is 847673829902.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1543590938 + ... + 1543591073.

It is an arithmetic number, because the mean of its divisors is an integer number (32415411126).

Almost surely, 2^209928376748 is an apocalyptic number.

It is an amenable number.

209928376748 is a deficient number, since it is larger than the sum of its proper divisors (179056556764).

209928376748 is a wasteful number, since it uses less digits than its factorization.

209928376748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087182032 (or 3087182030 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 209928376748 in words is "two hundred nine billion, nine hundred twenty-eight million, three hundred seventy-six thousand, seven hundred forty-eight".