544145321599 has 24 divisors (see below), whose sum is σ = 606887740800. Its totient is φ = 483842739600.

The previous prime is 544145321597. The next prime is 544145321623. The reversal of 544145321599 is 995123541445.

It is not a de Polignac number, because 544145321599 - 2¹ = 544145321597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544145321597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7584204 + ... + 7655614.

It is an arithmetic number, because the mean of its divisors is an integer number (25286989200).

Almost surely, 2^544145321599 is an apocalyptic number.

544145321599 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

544145321599 is a deficient number, since it is larger than the sum of its proper divisors (62742419201).

544145321599 is a wasteful number, since it uses less digits than its factorization.

544145321599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71739 (or 71680 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 52.

The spelling of 544145321599 in words is "five hundred forty-four billion, one hundred forty-five million, three hundred twenty-one thousand, five hundred ninety-nine".