9905109540844 has 48 divisors (see below), whose sum is σ = 19822202668800. Its totient is φ = 4242479731776.

The previous prime is 9905109540827. The next prime is 9905109540869. The reversal of 9905109540844 is 4480459015099.

It is a super-2 number, since 2×9905109540844² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534275727 + ... + 534294265.

It is an arithmetic number, because the mean of its divisors is an integer number (412962555600).

Almost surely, 2^{9905109540844} is an apocalyptic number.

It is an amenable number.

9905109540844 is an abundant number, since it is smaller than the sum of its proper divisors (9917093127956).

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

9905109540844 is a wasteful number, since it uses less digits than its factorization.

9905109540844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29062 (or 29060 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 58.

The spelling of 9905109540844 in words is "nine trillion, nine hundred five billion, one hundred nine million, five hundred forty thousand, eight hundred forty-four".