538444453737877 has 4 divisors (see below), whose sum is σ = 548603783053740. Its totient is φ = 528285124422016.

The previous prime is 538444453737871. The next prime is 538444453737889. The reversal of 538444453737877 is 778737354444835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 453602503818916 + 84841949918961 = 21297946^2 + 9210969^2 .

It is a cyclic number.

It is not a de Polignac number, because 538444453737877 - 2¹¹ = 538444453735829 is a prime.

It is a super-2 number, since 2×538444453737877² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538444453737797 and 538444453737806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538444453737871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5079664657852 + ... + 5079664657957.

It is an arithmetic number, because the mean of its divisors is an integer number (137150945763435).

Almost surely, 2^{538444453737877} is an apocalyptic number.

It is an amenable number.

538444453737877 is a deficient number, since it is larger than the sum of its proper divisors (10159329315863).

538444453737877 is a wasteful number, since it uses less digits than its factorization.

538444453737877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10159329315862.

The product of its digits is 26553139200, while the sum is 79.

The spelling of 538444453737877 in words is "five hundred thirty-eight trillion, four hundred forty-four billion, four hundred fifty-three million, seven hundred thirty-seven thousand, eight hundred seventy-seven".