544412244643 has 4 divisors (see below), whose sum is σ = 544666526208. Its totient is φ = 544157963080.

The previous prime is 544412244569. The next prime is 544412244709. The reversal of 544412244643 is 346442214445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346442214445 = 5 ⋅69288442889.

It is a cyclic number.

It is not a de Polignac number, because 544412244643 - 2²⁵ = 544378690211 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 544412244643.

It is not an unprimeable number, because it can be changed into a prime (544412244143) 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, 127137571 + ... + 127141852.

It is an arithmetic number, because the mean of its divisors is an integer number (136166631552).

Almost surely, 2^544412244643 is an apocalyptic number.

544412244643 is a deficient number, since it is larger than the sum of its proper divisors (254281565).

544412244643 is a wasteful number, since it uses less digits than its factorization.

544412244643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254281564.

The product of its digits is 1474560, while the sum is 43.

The spelling of 544412244643 in words is "five hundred forty-four billion, four hundred twelve million, two hundred forty-four thousand, six hundred forty-three".