9885231980382 has 64 divisors (see below), whose sum is σ = 21880753274880. Its totient is φ = 2952091682400.

The previous prime is 9885231980321. The next prime is 9885231980399. The reversal of 9885231980382 is 2830891325889.

It is a super-2 number, since 2×9885231980382² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10724119 + ... + 11609357.

It is an arithmetic number, because the mean of its divisors is an integer number (341886769920).

Almost surely, 2^{9885231980382} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9885231980382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10940376637440).

9885231980382 is an abundant number, since it is smaller than the sum of its proper divisors (11995521294498).

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

9885231980382 is a wasteful number, since it uses less digits than its factorization.

9885231980382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887709.

The product of its (nonzero) digits is 59719680, while the sum is 66.

The spelling of 9885231980382 in words is "nine trillion, eight hundred eighty-five billion, two hundred thirty-one million, nine hundred eighty thousand, three hundred eighty-two".