1944003694880 has 48 divisors (see below), whose sum is σ = 4945994021304. Its totient is φ = 717785978880.

The previous prime is 1944003694877. The next prime is 1944003694903. The reversal of 1944003694880 is 884963004491.

It can be written as a sum of positive squares in 4 ways, for example, as 1332648595216 + 611355099664 = 1154404^2 + 781892^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467306501 + ... + 467310660.

Almost surely, 2^{1944003694880} is an apocalyptic number.

1944003694880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1944003694880 is an abundant number, since it is smaller than the sum of its proper divisors (3001990326424).

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

1944003694880 is a wasteful number, since it uses less digits than its factorization.

1944003694880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934617189 (or 934617181 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 1944003694880 in words is "one trillion, nine hundred forty-four billion, three million, six hundred ninety-four thousand, eight hundred eighty".