9980709312 has 112 divisors (see below), whose sum is σ = 30316009472. Its totient is φ = 2838758400.

The previous prime is 9980709311. The next prime is 9980709313. The reversal of 9980709312 is 2139070899.

It is an interprime number because it is at equal distance from previous prime (9980709311) and next prime (9980709313).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×9980709312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980709311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283062 + ... + 316362.

It is an arithmetic number, because the mean of its divisors is an integer number (270678656).

Almost surely, 2^9980709312 is an apocalyptic number.

It is a pronic number, being equal to 99903×99904.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9980709312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15158004736).

9980709312 is an abundant number, since it is smaller than the sum of its proper divisors (20335300160).

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

9980709312 is a wasteful number, since it uses less digits than its factorization.

9980709312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33546 (or 33536 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9980709312 is about 99903.4999987488. The cubic root of 9980709312 is about 2153.0484473495.

The spelling of 9980709312 in words is "nine billion, nine hundred eighty million, seven hundred nine thousand, three hundred twelve".