9844128644923 has 8 divisors (see below), whose sum is σ = 10256650168320. Its totient is φ = 9437542683240.

The previous prime is 9844128644881. The next prime is 9844128644927. The reversal of 9844128644923 is 3294468214489.

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

It is a cyclic number.

It is not a de Polignac number, because 9844128644923 - 2¹⁷ = 9844128513851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9844128644927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483887043 + ... + 1483893676.

It is an arithmetic number, because the mean of its divisors is an integer number (1282081271040).

Almost surely, 2^{9844128644923} is an apocalyptic number.

9844128644923 is a deficient number, since it is larger than the sum of its proper divisors (412521523397).

9844128644923 is a wasteful number, since it uses less digits than its factorization.

9844128644923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967780857.

The product of its digits is 95551488, while the sum is 64.

The spelling of 9844128644923 in words is "nine trillion, eight hundred forty-four billion, one hundred twenty-eight million, six hundred forty-four thousand, nine hundred twenty-three".