9702181152 has 72 divisors (see below), whose sum is σ = 27625263120. Its totient is φ = 3229994880.

The previous prime is 9702181141. The next prime is 9702181157. The reversal of 9702181152 is 2511812079.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9702181157) 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 11 ways as a sum of consecutive naturals, for example, 212799 + ... + 254337.

It is an arithmetic number, because the mean of its divisors is an integer number (383684210).

Almost surely, 2^9702181152 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 9702181152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13812631560).

9702181152 is an abundant number, since it is smaller than the sum of its proper divisors (17923081968).

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

9702181152 is a wasteful number, since it uses less digits than its factorization.

9702181152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42366 (or 42355 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 9702181152 is about 98499.6505171465. The cubic root of 9702181152 is about 2132.8310750768.

The spelling of 9702181152 in words is "nine billion, seven hundred two million, one hundred eighty-one thousand, one hundred fifty-two".