209881832996 has 24 divisors (see below), whose sum is σ = 402130033536. Its totient is φ = 95056420320.

The previous prime is 209881832987. The next prime is 209881833011. The reversal of 209881832996 is 699238188902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8597996 + ... + 8622371.

It is an arithmetic number, because the mean of its divisors is an integer number (16755418064).

Almost surely, 2^209881832996 is an apocalyptic number.

It is an amenable number.

209881832996 is a deficient number, since it is larger than the sum of its proper divisors (192248200540).

209881832996 is a wasteful number, since it uses less digits than its factorization.

209881832996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220659 (or 17220657 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 65.

The spelling of 209881832996 in words is "two hundred nine billion, eight hundred eighty-one million, eight hundred thirty-two thousand, nine hundred ninety-six".