9839671380 has 216 divisors, whose sum is σ = 37876718880. Its totient is φ = 2044586880.

The previous prime is 9839671357. The next prime is 9839671397. The reversal of 9839671380 is 831769389.

9839671380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9839671380² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46311 + ... + 147729.

It is an arithmetic number, because the mean of its divisors is an integer number (175355180).

Almost surely, 2^9839671380 is an apocalyptic number.

9839671380 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9839671380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18938359440).

9839671380 is an abundant number, since it is smaller than the sum of its proper divisors (28037047500).

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

9839671380 is a wasteful number, since it uses less digits than its factorization.

9839671380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101459 (or 101447 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 9839671380 is about 99195.1177225976. The cubic root of 9839671380 is about 2142.8586843037.

The spelling of 9839671380 in words is "nine billion, eight hundred thirty-nine million, six hundred seventy-one thousand, three hundred eighty".