5440340461321 has 16 divisors (see below), whose sum is σ = 5708000268288. Its totient is φ = 5178671110800.

The previous prime is 5440340461313. The next prime is 5440340461351. The reversal of 5440340461321 is 1231640430445.

It is not a de Polignac number, because 5440340461321 - 2³ = 5440340461313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440340461351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498925 + ... + 3336106.

It is an arithmetic number, because the mean of its divisors is an integer number (356750016768).

Almost surely, 2^{5440340461321} is an apocalyptic number.

It is an amenable number.

5440340461321 is a deficient number, since it is larger than the sum of its proper divisors (267659806967).

5440340461321 is a wasteful number, since it uses less digits than its factorization.

5440340461321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835812.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 5440340461321 its reverse (1231640430445), we get a palindrome (6671980891766).

The spelling of 5440340461321 in words is "five trillion, four hundred forty billion, three hundred forty million, four hundred sixty-one thousand, three hundred twenty-one".