9647143740 has 576 divisors, whose sum is σ = 34580722176. Its totient is φ = 2241727488.

The previous prime is 9647143721. The next prime is 9647143757. The reversal of 9647143740 is 473417469.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 143987187 + ... + 143987253.

It is an arithmetic number, because the mean of its divisors is an integer number (60035976).

Almost surely, 2^9647143740 is an apocalyptic number.

9647143740 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 9647143740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17290361088).

9647143740 is an abundant number, since it is smaller than the sum of its proper divisors (24933578436).

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

9647143740 is a wasteful number, since it uses less digits than its factorization.

9647143740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 9647143740 is about 98219.8744654054. The cubic root of 9647143740 is about 2128.7904658374.

The spelling of 9647143740 in words is "nine billion, six hundred forty-seven million, one hundred forty-three thousand, seven hundred forty".