9719818368 has 256 divisors, whose sum is σ = 29018787840. Its totient is φ = 2862305280.

The previous prime is 9719818351. The next prime is 9719818373. The reversal of 9719818368 is 8638189179.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16558171 + ... + 16558757.

It is an arithmetic number, because the mean of its divisors is an integer number (113354640).

Almost surely, 2^9719818368 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 9719818368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14509393920).

9719818368 is an abundant number, since it is smaller than the sum of its proper divisors (19298969472).

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

9719818368 is a wasteful number, since it uses less digits than its factorization.

9719818368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 743 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 60.

The square root of 9719818368 is about 98589.1391990010. The cubic root of 9719818368 is about 2134.1226894910.

The spelling of 9719818368 in words is "nine billion, seven hundred nineteen million, eight hundred eighteen thousand, three hundred sixty-eight".