1944133839684 has 81 divisors (see below), whose sum is σ = 4937860104541. Its totient is φ = 644957584320.

The previous prime is 1944133839677. The next prime is 1944133839721. The reversal of 1944133839684 is 4869383314491.

The square root of 1944133839684 is 1394322.

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

1944133839684 is a `hidden beast` number, since 1 + 9 + 441 + 33 + 83 + 9 + 6 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1313824873284 + 630308966400 = 1146222^2 + 793920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2350826479 + ... + 2350827305.

Almost surely, 2^{1944133839684} is an apocalyptic number.

1944133839684 is the 1394322-nd square number.

It is an amenable number.

1944133839684 is an abundant number, since it is smaller than the sum of its proper divisors (2993726264857).

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

1944133839684 is an frugal number, since it uses more digits than its factorization.

1944133839684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226 (or 1113 counting only the distinct ones).

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

The spelling of 1944133839684 in words is "one trillion, nine hundred forty-four billion, one hundred thirty-three million, eight hundred thirty-nine thousand, six hundred eighty-four".