9949787280 has 200 divisors, whose sum is σ = 35672550144. Its totient is φ = 2567635200.

The previous prime is 9949787273. The next prime is 9949787293. The reversal of 9949787280 is 827879499.

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 39 ways as a sum of consecutive naturals, for example, 176115 + ... + 225645.

Almost surely, 2^9949787280 is an apocalyptic number.

9949787280 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 9949787280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17836275072).

9949787280 is an abundant number, since it is smaller than the sum of its proper divisors (25722762864).

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

9949787280 is a wasteful number, since it uses less digits than its factorization.

9949787280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49587 (or 49572 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The square root of 9949787280 is about 99748.6204415881. The cubic root of 9949787280 is about 2150.8226367065.

The spelling of 9949787280 in words is "nine billion, nine hundred forty-nine million, seven hundred eighty-seven thousand, two hundred eighty".