9949118868 has 144 divisors (see below), whose sum is σ = 28200856320. Its totient is φ = 3048845184.

The previous prime is 9949118863. The next prime is 9949118911. The reversal of 9949118868 is 8688119499.

9949118868 is a `hidden beast` number, since 9 + 9 + 491 + 1 + 88 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949118863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3397621 + ... + 3400547.

It is an arithmetic number, because the mean of its divisors is an integer number (195839280).

Almost surely, 2^9949118868 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 9949118868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14100428160).

9949118868 is an abundant number, since it is smaller than the sum of its proper divisors (18251737452).

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

9949118868 is a wasteful number, since it uses less digits than its factorization.

9949118868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3214 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 63.

The square root of 9949118868 is about 99745.2699028881. The cubic root of 9949118868 is about 2150.7744725996.

The spelling of 9949118868 in words is "nine billion, nine hundred forty-nine million, one hundred eighteen thousand, eight hundred sixty-eight".