9999917466905 has 8 divisors (see below), whose sum is σ = 12000084437952. Its totient is φ = 7999811655088.

The previous prime is 9999917466901. The next prime is 9999917466907. The reversal of 9999917466905 is 5096647199999.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9999917466905 - 2² = 9999917466901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999917466901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14929319 + ... + 15584748.

It is an arithmetic number, because the mean of its divisors is an integer number (1500010554744).

Almost surely, 2^{9999917466905} is an apocalyptic number.

It is an amenable number.

9999917466905 is a deficient number, since it is larger than the sum of its proper divisors (2000166971047).

9999917466905 is a wasteful number, since it uses less digits than its factorization.

9999917466905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30579615.

The product of its (nonzero) digits is 2678462640, while the sum is 83.

The spelling of 9999917466905 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred seventeen million, four hundred sixty-six thousand, nine hundred five".