9947783508 has 96 divisors (see below), whose sum is σ = 25283887104. Its totient is φ = 3025911168.

The previous prime is 9947783497. The next prime is 9947783509. The reversal of 9947783508 is 8053877499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947783509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6874041 + ... + 6875487.

It is an arithmetic number, because the mean of its divisors is an integer number (263373824).

Almost surely, 2^9947783508 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 9947783508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12641943552).

9947783508 is an abundant number, since it is smaller than the sum of its proper divisors (15336103596).

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

9947783508 is a wasteful number, since it uses less digits than its factorization.

9947783508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The square root of 9947783508 is about 99738.5758270089. The cubic root of 9947783508 is about 2150.6782434178.

The spelling of 9947783508 in words is "nine billion, nine hundred forty-seven million, seven hundred eighty-three thousand, five hundred eight".