1984410333481 has 9 divisors (see below), whose sum is σ = 1993664542071. Its totient is φ = 1975198903032.

The previous prime is 1984410333461. The next prime is 1984410333487. The reversal of 1984410333481 is 1843330144891.

The square root of 1984410333481 is 1408691.

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., 1068339296025 + 916071037456 = 1033605^2 + 957116^2 .

It is not a de Polignac number, because 1984410333481 - 2⁵ = 1984410333449 is a prime.

It is a super-2 number, since 2×1984410333481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984410333487) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 314134935 + ... + 314141251.

Almost surely, 2^{1984410333481} is an apocalyptic number.

1984410333481 is the 1408691-st square number.

1984410333481 is the 704346-th centered octagonal number.

It is an amenable number.

1984410333481 is a deficient number, since it is larger than the sum of its proper divisors (9254208590).

1984410333481 is an frugal number, since it uses more digits than its factorization.

1984410333481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080 (or 6540 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

Multiplying 1984410333481 by its sum of digits (49), we get a square (97236106340569 = 9860837²).

The spelling of 1984410333481 in words is "one trillion, nine hundred eighty-four billion, four hundred ten million, three hundred thirty-three thousand, four hundred eighty-one".