5440654215441 has 15 divisors (see below), whose sum is σ = 8127428397451. Its totient is φ = 3627088815168.

The previous prime is 5440654215439. The next prime is 5440654215481. The reversal of 5440654215441 is 1445124560445.

The square root of 5440654215441 is 2332521.

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

5440654215441 is a `hidden beast` number, since 5 + 4 + 4 + 0 + 65 + 42 + 1 + 544 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3818393473041 + 1622260742400 = 1954071^2 + 1273680^2 .

It is not a de Polignac number, because 5440654215441 - 2¹ = 5440654215439 is a prime.

It is a super-3 number, since 3×5440654215441³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440654215401) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 20863105 + ... + 21122273.

Almost surely, 2^{5440654215441} is an apocalyptic number.

5440654215441 is the 2332521-st square number.

5440654215441 is the 1166261-st centered octagonal number.

It is an amenable number.

5440654215441 is a deficient number, since it is larger than the sum of its proper divisors (2686774182010).

5440654215441 is an frugal number, since it uses more digits than its factorization.

5440654215441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518350 (or 259172 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

Adding to 5440654215441 its reverse (1445124560445), we get a palindrome (6885778775886).

The spelling of 5440654215441 in words is "five trillion, four hundred forty billion, six hundred fifty-four million, two hundred fifteen thousand, four hundred forty-one".