9885447133470 has 128 divisors (see below), whose sum is σ = 27090432996480. Its totient is φ = 2563606056960.

The previous prime is 9885447133447. The next prime is 9885447133481. The reversal of 9885447133470 is 743317445889.

9885447133470 is a `hidden beast` number, since 9 + 8 + 8 + 544 + 7 + 13 + 3 + 4 + 70 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9885447133398 and 9885447133407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2038402 + ... + 4891418.

It is an arithmetic number, because the mean of its divisors is an integer number (211644007785).

Almost surely, 2^{9885447133470} is an apocalyptic number.

9885447133470 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9885447133470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13545216498240).

9885447133470 is an abundant number, since it is smaller than the sum of its proper divisors (17204985863010).

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

9885447133470 is a wasteful number, since it uses less digits than its factorization.

9885447133470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853387 (or 2853381 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 9885447133470 in words is "nine trillion, eight hundred eighty-five billion, four hundred forty-seven million, one hundred thirty-three thousand, four hundred seventy".