1944669768228 has 72 divisors (see below), whose sum is σ = 5372828269536. Its totient is φ = 588167049600.

The previous prime is 1944669768203. The next prime is 1944669768229. The reversal of 1944669768228 is 8228679664491.

1944669768228 is a `hidden beast` number, since 1 + 94 + 466 + 9 + 76 + 8 + 2 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1944669768229) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4487713 + ... + 4901928.

Almost surely, 2^{1944669768228} is an apocalyptic number.

1944669768228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1944669768228 is an abundant number, since it is smaller than the sum of its proper divisors (3428158501308).

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

1944669768228 is a wasteful number, since it uses less digits than its factorization.

1944669768228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390185 (or 9390180 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 72.

The spelling of 1944669768228 in words is "one trillion, nine hundred forty-four billion, six hundred sixty-nine million, seven hundred sixty-eight thousand, two hundred twenty-eight".