3555973861441 has 3 divisors (see below), whose sum is σ = 3555975747171. Its totient is φ = 3555971975712.

The previous prime is 3555973861337. The next prime is 3555973861501. The reversal of 3555973861441 is 1441683795553.

The square root of 3555973861441 is 1885729.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 130661283841 + 3425312577600 = 361471^2 + 1850760^2 .

It is not a de Polignac number, because 3555973861441 - 2¹¹ = 3555973859393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3555973861441.

It is not an unprimeable number, because it can be changed into a prime (3555974861441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 942865 + ... + 2828593.

It is an arithmetic number, because the mean of its divisors is an integer number (1185325249057).

Almost surely, 2^{3555973861441} is an apocalyptic number.

3555973861441 is the 1885729-th square number.

3555973861441 is the 942865-th centered octagonal number.

It is an amenable number.

3555973861441 is a deficient number, since it is larger than the sum of its proper divisors (1885730).

3555973861441 is an frugal number, since it uses more digits than its factorization.

3555973861441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771458 (or 1885729 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 61.

The spelling of 3555973861441 in words is "three trillion, five hundred fifty-five billion, nine hundred seventy-three million, eight hundred sixty-one thousand, four hundred forty-one".