9961870104 has 96 divisors (see below), whose sum is σ = 28150950000. Its totient is φ = 3264095232.

The previous prime is 9961870063. The next prime is 9961870133. The reversal of 9961870104 is 4010781699.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9961870104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745272 + ... + 758520.

Almost surely, 2^9961870104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9961870104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14075475000).

9961870104 is an abundant number, since it is smaller than the sum of its proper divisors (18189079896).

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

9961870104 is a wasteful number, since it uses less digits than its factorization.

9961870104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382 (or 13313 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 9961870104 is about 99809.1684365720. The cubic root of 9961870104 is about 2151.6929232751.

The spelling of 9961870104 in words is "nine billion, nine hundred sixty-one million, eight hundred seventy thousand, one hundred four".