1944699644168 has 28 divisors (see below), whose sum is σ = 3693059420415. Its totient is φ = 960041596488.

The previous prime is 1944699644123. The next prime is 1944699644213. The reversal of 1944699644168 is 8614469964491.

The cubic root of 1944699644168 is 12482.

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

It is an interprime number because it is at equal distance from previous prime (1944699644123) and next prime (1944699644213).

It can be written as a sum of positive squares in only one way, i.e., 972349822084 + 972349822084 = 986078^2 + 986078^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=986078.

It is a Duffinian number.

Its product of digits (322486272) is a multiple of the sum of its prime divisors (81).

It is an unprimeable number.

It is a polite number, since it can be written in 6 ways as a sum of consecutive naturals, for example, 24616451153 + ... + 24616451231.

Almost surely, 2^{1944699644168} is an apocalyptic number.

It is an amenable number.

1944699644168 is a deficient number, since it is larger than the sum of its proper divisors (1748359776247).

1944699644168 is an frugal number, since it uses more digits than its factorization.

1944699644168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 81 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 71.

The spelling of 1944699644168 in words is "one trillion, nine hundred forty-four billion, six hundred ninety-nine million, six hundred forty-four thousand, one hundred sixty-eight".