9919830105 has 32 divisors (see below), whose sum is σ = 18010483200. Its totient is φ = 5178007296.

The previous prime is 9919830079. The next prime is 9919830113. The reversal of 9919830105 is 5010389199.

It is not a de Polignac number, because 9919830105 - 2⁵ = 9919830073 is a prime.

It is a super-2 number, since 2×9919830105² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775360 + ... + 788049.

It is an arithmetic number, because the mean of its divisors is an integer number (562827600).

Almost surely, 2^9919830105 is an apocalyptic number.

It is an amenable number.

9919830105 is a deficient number, since it is larger than the sum of its proper divisors (8090653095).

9919830105 is a wasteful number, since it uses less digits than its factorization.

9919830105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563470 (or 1563464 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 9919830105 is about 99598.3438868338. The cubic root of 9919830105 is about 2148.6618754767.

The spelling of 9919830105 in words is "nine billion, nine hundred nineteen million, eight hundred thirty thousand, one hundred five".