9444020806728 has 96 divisors (see below), whose sum is σ = 25615784937600. Its totient is φ = 3143303280000.

The previous prime is 9444020806721. The next prime is 9444020806757. The reversal of 9444020806728 is 8276080204449.

9444020806728 is a `hidden beast` number, since 94 + 4 + 402 + 0 + 80 + 6 + 72 + 8 = 666.

It is a super-2 number, since 2×9444020806728² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9444020806721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485070178 + ... + 485089646.

It is an arithmetic number, because the mean of its divisors is an integer number (266831093100).

Almost surely, 2^{9444020806728} is an apocalyptic number.

It is an amenable number.

9444020806728 is an abundant number, since it is smaller than the sum of its proper divisors (16171764130872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9444020806728 is a wasteful number, since it uses less digits than its factorization.

9444020806728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29203 (or 29196 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 9444020806728 in words is "nine trillion, four hundred forty-four billion, twenty million, eight hundred six thousand, seven hundred twenty-eight".