9990452472000 has 3584 divisors, whose sum is σ = 47801379225600. Its totient is φ = 1769693184000.

The previous prime is 9990452471959. The next prime is 9990452472023. The reversal of 9990452472000 is 2742540999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 19627607746 + ... + 19627608254.

It is an arithmetic number, because the mean of its divisors is an integer number (13337438400).

Almost surely, 2^{9990452472000} 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 9990452472000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23900689612800).

9990452472000 is an abundant number, since it is smaller than the sum of its proper divisors (37810926753600).

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

9990452472000 is a wasteful number, since it uses less digits than its factorization.

9990452472000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 9990452472000 in words is "nine trillion, nine hundred ninety billion, four hundred fifty-two million, four hundred seventy-two thousand".