9915448608 has 288 divisors, whose sum is σ = 31295025216. Its totient is φ = 2959017984.

The previous prime is 9915448607. The next prime is 9915448619. The reversal of 9915448608 is 8068445199.

9915448608 is a `hidden beast` number, since 9 + 9 + 154 + 486 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×9915448608² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9915448601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21231991 + ... + 21232457.

It is an arithmetic number, because the mean of its divisors is an integer number (108663282).

Almost surely, 2^9915448608 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 9915448608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15647512608).

9915448608 is an abundant number, since it is smaller than the sum of its proper divisors (21379576608).

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

9915448608 is a wasteful number, since it uses less digits than its factorization.

9915448608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 9915448608 is about 99576.3456248521. The cubic root of 9915448608 is about 2148.3454808785.

The spelling of 9915448608 in words is "nine billion, nine hundred fifteen million, four hundred forty-eight thousand, six hundred eight".