9728443750 has 24 divisors (see below), whose sum is σ = 18239676336. Its totient is φ = 3891375000.

The previous prime is 9728443729. The next prime is 9728443757. The reversal of 9728443750 is 573448279.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9728443694 and 9728443703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728443757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 772026 + ... + 784525.

It is an arithmetic number, because the mean of its divisors is an integer number (759986514).

Almost surely, 2^9728443750 is an apocalyptic number.

9728443750 is a deficient number, since it is larger than the sum of its proper divisors (8511232586).

9728443750 is an equidigital number, since it uses as much as digits as its factorization.

9728443750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556578 (or 1556558 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 9728443750 is about 98632.8735767138. The cubic root of 9728443750 is about 2134.7537774542.

The spelling of 9728443750 in words is "nine billion, seven hundred twenty-eight million, four hundred forty-three thousand, seven hundred fifty".