5440450361623 has 4 divisors (see below), whose sum is σ = 5726789854360. Its totient is φ = 5154110868888.

The previous prime is 5440450361609. The next prime is 5440450361663. The reversal of 5440450361623 is 3261630540445.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5440450361623 - 2⁹ = 5440450361111 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 5440450361623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440450361663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143169746340 + ... + 143169746377.

It is an arithmetic number, because the mean of its divisors is an integer number (1431697463590).

Almost surely, 2^{5440450361623} is an apocalyptic number.

5440450361623 is a deficient number, since it is larger than the sum of its proper divisors (286339492737).

5440450361623 is a wasteful number, since it uses less digits than its factorization.

5440450361623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286339492736.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 5440450361623 in words is "five trillion, four hundred forty billion, four hundred fifty million, three hundred sixty-one thousand, six hundred twenty-three".