1983280337944 has 16 divisors (see below), whose sum is σ = 3718667687400. Its totient is φ = 991635621312.

The previous prime is 1983280337921. The next prime is 1983280337963. The reversal of 1983280337944 is 4497330823891.

It is a super-2 number, since 2×1983280337944² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931979 + ... + 2774725.

Almost surely, 2^{1983280337944} is an apocalyptic number.

It is an amenable number.

1983280337944 is a deficient number, since it is larger than the sum of its proper divisors (1735387349456).

1983280337944 is a wasteful number, since it uses less digits than its factorization.

1983280337944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136922 (or 1136918 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 1983280337944 in words is "one trillion, nine hundred eighty-three billion, two hundred eighty million, three hundred thirty-seven thousand, nine hundred forty-four".