9817009816 has 16 divisors (see below), whose sum is σ = 19000664640. Its totient is φ = 4750165920.

The previous prime is 9817009777. The next prime is 9817009871. The reversal of 9817009816 is 6189007189.

It is a self number, because there is not a number n which added to its sum of digits gives 9817009816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19792111 + ... + 19792606.

It is an arithmetic number, because the mean of its divisors is an integer number (1187541540).

Almost surely, 2^9817009816 is an apocalyptic number.

It is an amenable number.

9817009816 is a deficient number, since it is larger than the sum of its proper divisors (9183654824).

9817009816 is a wasteful number, since it uses less digits than its factorization.

9817009816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39584754 (or 39584750 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 49.

The square root of 9817009816 is about 99080.8246635039. The cubic root of 9817009816 is about 2141.2123604672.

The spelling of 9817009816 in words is "nine billion, eight hundred seventeen million, nine thousand, eight hundred sixteen".