9899593835044 has 27 divisors (see below), whose sum is σ = 18284304455067. Its totient is φ = 4689224655768.

The previous prime is 9899593835029. The next prime is 9899593835051. The reversal of 9899593835044 is 4405383959989.

The square root of 9899593835044 is 3146362.

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

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 119520357 + ... + 119603155.

Almost surely, 2^{9899593835044} is an apocalyptic number.

9899593835044 is the 3146362-nd square number.

It is an amenable number.

9899593835044 is a deficient number, since it is larger than the sum of its proper divisors (8384710620023).

9899593835044 is an frugal number, since it uses more digits than its factorization.

9899593835044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165640 (or 82820 counting only the distinct ones).

The product of its (nonzero) digits is 1511654400, while the sum is 76.

The spelling of 9899593835044 in words is "nine trillion, eight hundred ninety-nine billion, five hundred ninety-three million, eight hundred thirty-five thousand, forty-four".