9728947003876 has 81 divisors (see below), whose sum is σ = 18216936287067. Its totient is φ = 4545439937280.

The previous prime is 9728947003807. The next prime is 9728947003889. The reversal of 9728947003876 is 6783007498279.

The square root of 9728947003876 is 3119126.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 121278062500 + 9607668941376 = 348250^2 + 3099624^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21104006286 + ... + 21104006746.

Almost surely, 2^{9728947003876} is an apocalyptic number.

9728947003876 is the 3119126-th square number.

It is an amenable number.

9728947003876 is a deficient number, since it is larger than the sum of its proper divisors (8487989283191).

9728947003876 is an equidigital number, since it uses as much as digits as its factorization.

9728947003876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 70.

The spelling of 9728947003876 in words is "nine trillion, seven hundred twenty-eight billion, nine hundred forty-seven million, three thousand, eight hundred seventy-six".