9999681480 has 192 divisors, whose sum is σ = 33976350720. Its totient is φ = 2545804800.

The previous prime is 9999681451. The next prime is 9999681509. The reversal of 9999681480 is 841869999.

9999681480 is a `hidden beast` number, since 9 + 9 + 99 + 68 + 1 + 480 = 666.

It is an interprime number because it is at equal distance from previous prime (9999681451) and next prime (9999681509).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6797145 + ... + 6798615.

It is an arithmetic number, because the mean of its divisors is an integer number (176960160).

Almost surely, 2^9999681480 is an apocalyptic number.

9999681480 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 9999681480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16988175360).

9999681480 is an abundant number, since it is smaller than the sum of its proper divisors (23976669240).

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

9999681480 is a wasteful number, since it uses less digits than its factorization.

9999681480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 2325 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 63.

The square root of 9999681480 is about 99998.4073873179. The cubic root of 9999681480 is about 2154.4118154378.

It can be divided in two parts, 99996 and 81480, that added together give a square (181476 = 426²).

The spelling of 9999681480 in words is "nine billion, nine hundred ninety-nine million, six hundred eighty-one thousand, four hundred eighty".