544463863999 has 16 divisors (see below), whose sum is σ = 634901670144. Its totient is φ = 461899345600.

The previous prime is 544463863987. The next prime is 544463864033. The reversal of 544463863999 is 999368364445.

It is not a de Polignac number, because 544463863999 - 2⁷ = 544463863871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544463863939) 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, 26233909 + ... + 26254654.

It is an arithmetic number, because the mean of its divisors is an integer number (39681354384).

Almost surely, 2^544463863999 is an apocalyptic number.

544463863999 is a deficient number, since it is larger than the sum of its proper divisors (90437806145).

544463863999 is a wasteful number, since it uses less digits than its factorization.

544463863999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52488638.

The product of its digits is 604661760, while the sum is 70.

The spelling of 544463863999 in words is "five hundred forty-four billion, four hundred sixty-three million, eight hundred sixty-three thousand, nine hundred ninety-nine".