9888644156 has 6 divisors (see below), whose sum is σ = 17305127280. Its totient is φ = 4944322076.

The previous prime is 9888644149. The next prime is 9888644179. The reversal of 9888644156 is 6514468889.

9888644156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9888644095 and 9888644104.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1236080516 + ... + 1236080523.

It is an arithmetic number, because the mean of its divisors is an integer number (2884187880).

Almost surely, 2^9888644156 is an apocalyptic number.

It is an amenable number.

9888644156 is a deficient number, since it is larger than the sum of its proper divisors (7416483124).

9888644156 is a wasteful number, since it uses less digits than its factorization.

9888644156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472161043 (or 2472161041 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 59.

The square root of 9888644156 is about 99441.6620738008. The cubic root of 9888644156 is about 2146.4078582940.

The spelling of 9888644156 in words is "nine billion, eight hundred eighty-eight million, six hundred forty-four thousand, one hundred fifty-six".