8172926609968 has 40 divisors (see below), whose sum is σ = 16525945994976. Its totient is φ = 3908218406400.

The previous prime is 8172926609959. The next prime is 8172926609999. The reversal of 8172926609968 is 8699066292718.

It is a super-2 number, since 2×8172926609968² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8172926609968.

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, 894258 + ... + 4140718.

Almost surely, 2^{8172926609968} is an apocalyptic number.

It is an amenable number.

8172926609968 is an abundant number, since it is smaller than the sum of its proper divisors (8353019385008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8172926609968 is a wasteful number, since it uses less digits than its factorization.

8172926609968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253333 (or 3253327 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 73.

The spelling of 8172926609968 in words is "eight trillion, one hundred seventy-two billion, nine hundred twenty-six million, six hundred nine thousand, nine hundred sixty-eight".