9899241612048 has 200 divisors, whose sum is σ = 28818702448536. Its totient is φ = 3280476672000.

The previous prime is 9899241612031. The next prime is 9899241612067. The reversal of 9899241612048 is 8402161429989.

9899241612048 is a `hidden beast` number, since 9 + 8 + 9 + 9 + 2 + 4 + 1 + 612 + 0 + 4 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 364782176784 + 9534459435264 = 603972^2 + 3087792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1196568040 + ... + 1196576312.

Almost surely, 2^{9899241612048} 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 9899241612048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14409351224268).

9899241612048 is an abundant number, since it is smaller than the sum of its proper divisors (18919460836488).

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

9899241612048 is a wasteful number, since it uses less digits than its factorization.

9899241612048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13575 (or 13560 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 9899241612048 in words is "nine trillion, eight hundred ninety-nine billion, two hundred forty-one million, six hundred twelve thousand, forty-eight".