9957968806 has 8 divisors (see below), whose sum is σ = 14939423784. Its totient is φ = 4978160880.

The previous prime is 9957968789. The next prime is 9957968833. The reversal of 9957968806 is 6088697599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9957968806² (a number of 21 digits) contains 22 as substring.

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, 396535 + ... + 420898.

It is an arithmetic number, because the mean of its divisors is an integer number (1867427973).

Almost surely, 2^9957968806 is an apocalyptic number.

9957968806 is a deficient number, since it is larger than the sum of its proper divisors (4981454978).

9957968806 is a wasteful number, since it uses less digits than its factorization.

9957968806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823526.

The product of its (nonzero) digits is 58786560, while the sum is 67.

The square root of 9957968806 is about 99789.6227370361. The cubic root of 9957968806 is about 2151.4120024151.

The spelling of 9957968806 in words is "nine billion, nine hundred fifty-seven million, nine hundred sixty-eight thousand, eight hundred six".