9980138760 has 192 divisors, whose sum is σ = 31787121600. Its totient is φ = 2504839680.

The previous prime is 9980138741. The next prime is 9980138761. The reversal of 9980138760 is 678310899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980138761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4265671 + ... + 4268009.

It is an arithmetic number, because the mean of its divisors is an integer number (165557925).

Almost surely, 2^9980138760 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 9980138760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15893560800).

9980138760 is an abundant number, since it is smaller than the sum of its proper divisors (21806982840).

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

9980138760 is a wasteful number, since it uses less digits than its factorization.

9980138760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 9980138760 is about 99900.6444423658. The cubic root of 9980138760 is about 2153.0074198878.

The spelling of 9980138760 in words is "nine billion, nine hundred eighty million, one hundred thirty-eight thousand, seven hundred sixty".