9968722784 has 24 divisors (see below), whose sum is σ = 19628192808. Its totient is φ = 4983784960.

The previous prime is 9968722783. The next prime is 9968722811. The reversal of 9968722784 is 4872278699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9968722783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450344 + ... + 471960.

It is an arithmetic number, because the mean of its divisors is an integer number (817841367).

Almost surely, 2^9968722784 is an apocalyptic number.

It is an amenable number.

9968722784 is a deficient number, since it is larger than the sum of its proper divisors (9659470024).

9968722784 is a wasteful number, since it uses less digits than its factorization.

9968722784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36038 (or 36030 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 62.

The square root of 9968722784 is about 99843.4914453616. The cubic root of 9968722784 is about 2152.1861868641.

The spelling of 9968722784 in words is "nine billion, nine hundred sixty-eight million, seven hundred twenty-two thousand, seven hundred eighty-four".