9728801630 has 8 divisors (see below), whose sum is σ = 17511842952. Its totient is φ = 3891520648.

The previous prime is 9728801617. The next prime is 9728801659. The reversal of 9728801630 is 361088279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 486440072 + ... + 486440091.

It is an arithmetic number, because the mean of its divisors is an integer number (2188980369).

Almost surely, 2^9728801630 is an apocalyptic number.

9728801630 is a deficient number, since it is larger than the sum of its proper divisors (7783041322).

9728801630 is a wasteful number, since it uses less digits than its factorization.

9728801630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972880170.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 9728801630 is about 98634.6877624703. The cubic root of 9728801630 is about 2134.7799541766.

The spelling of 9728801630 in words is "nine billion, seven hundred twenty-eight million, eight hundred one thousand, six hundred thirty".