1983979297444 has 9 divisors (see below), whose sum is σ = 3471968700417. Its totient is φ = 991988240184.

The previous prime is 1983979297439. The next prime is 1983979297501. The reversal of 1983979297444 is 4447929793891.

The square root of 1983979297444 is 1408538.

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

It can be written as a sum of positive squares in only one way, i.e., 1961226591844 + 22752705600 = 1400438^2 + 150840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2464942 + ... + 3169210.

Almost surely, 2^{1983979297444} is an apocalyptic number.

1983979297444 is the 1408538-th square number.

It is an amenable number.

1983979297444 is a deficient number, since it is larger than the sum of its proper divisors (1487989402973).

1983979297444 is an frugal number, since it uses more digits than its factorization.

1983979297444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408542 (or 704271 counting only the distinct ones).

The product of its digits is 987614208, while the sum is 76.

The spelling of 1983979297444 in words is "one trillion, nine hundred eighty-three billion, nine hundred seventy-nine million, two hundred ninety-seven thousand, four hundred forty-four".