944128366389 has 36 divisors (see below), whose sum is σ = 1496942728164. Its totient is φ = 573043071744.

The previous prime is 944128366381. The next prime is 944128366409. The reversal of 944128366389 is 983663821449.

944128366389 is a `hidden beast` number, since 9 + 4 + 412 + 83 + 6 + 63 + 89 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 71337068100 + 872791298289 = 267090^2 + 934233^2 .

It is not a de Polignac number, because 944128366389 - 2³ = 944128366381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (944128366381) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4140534 + ... + 4362599.

It is an arithmetic number, because the mean of its divisors is an integer number (41581742449).

Almost surely, 2^944128366389 is an apocalyptic number.

It is an amenable number.

944128366389 is a deficient number, since it is larger than the sum of its proper divisors (552814361775).

944128366389 is a wasteful number, since it uses less digits than its factorization.

944128366389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503238 (or 8503222 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 944128366389 in words is "nine hundred forty-four billion, one hundred twenty-eight million, three hundred sixty-six thousand, three hundred eighty-nine".