9908924843521 has 8 divisors (see below), whose sum is σ = 10946568297600. Its totient is φ = 8894086740240.

The previous prime is 9908924843491. The next prime is 9908924843537. The reversal of 9908924843521 is 1253484298099.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9908924843521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9908924843921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5701336786 + ... + 5701338523.

It is an arithmetic number, because the mean of its divisors is an integer number (1368321037200).

Almost surely, 2^{9908924843521} is an apocalyptic number.

It is an amenable number.

9908924843521 is a deficient number, since it is larger than the sum of its proper divisors (1037643454079).

9908924843521 is a wasteful number, since it uses less digits than its factorization.

9908924843521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402675399.

The product of its (nonzero) digits is 44789760, while the sum is 64.

The spelling of 9908924843521 in words is "nine trillion, nine hundred eight billion, nine hundred twenty-four million, eight hundred forty-three thousand, five hundred twenty-one".