545213533444 has 6 divisors (see below), whose sum is σ = 954123683534. Its totient is φ = 272606766720.

The previous prime is 545213533441. The next prime is 545213533471. The reversal of 545213533444 is 444335312545.

It can be written as a sum of positive squares in only one way, i.e., 376612961344 + 168600572100 = 613688^2 + 410610^2 .

It is a super-2 number, since 2×545213533444² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545213533444.

It is not an unprimeable number, because it can be changed into a prime (545213533441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68151691677 + ... + 68151691684.

Almost surely, 2^545213533444 is an apocalyptic number.

It is an amenable number.

545213533444 is a deficient number, since it is larger than the sum of its proper divisors (408910150090).

545213533444 is a wasteful number, since it uses less digits than its factorization.

545213533444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136303383365 (or 136303383363 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 43.

Adding to 545213533444 its reverse (444335312545), we get a palindrome (989548845989).

The spelling of 545213533444 in words is "five hundred forty-five billion, two hundred thirteen million, five hundred thirty-three thousand, four hundred forty-four".