544331636345 has 12 divisors (see below), whose sum is σ = 759842529444. Its totient is φ = 373255979040.

The previous prime is 544331636297. The next prime is 544331636363. The reversal of 544331636345 is 543636133445.

It can be written as a sum of positive squares in 2 ways, for example, as 181278389824 + 363053246521 = 425768^2 + 602539^2 .

It is not a de Polignac number, because 544331636345 - 2⁶ = 544331636281 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 544331636345.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110880646 + ... + 1110881135.

It is an arithmetic number, because the mean of its divisors is an integer number (63320210787).

Almost surely, 2^544331636345 is an apocalyptic number.

It is an amenable number.

544331636345 is a deficient number, since it is larger than the sum of its proper divisors (215510893099).

544331636345 is a wasteful number, since it uses less digits than its factorization.

544331636345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221761800 (or 2221761793 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 47.

The spelling of 544331636345 in words is "five hundred forty-four billion, three hundred thirty-one million, six hundred thirty-six thousand, three hundred forty-five".