545444455123 has 8 divisors (see below), whose sum is σ = 571982378400. Its totient is φ = 519421831488.

The previous prime is 545444455111. The next prime is 545444455169. The reversal of 545444455123 is 321554444545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545444455123 - 2²⁵ = 545410900691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545444455183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128822743 + ... + 128826976.

It is an arithmetic number, because the mean of its divisors is an integer number (71497797300).

Almost surely, 2^545444455123 is an apocalyptic number.

545444455123 is a deficient number, since it is larger than the sum of its proper divisors (26537923277).

545444455123 is a wasteful number, since it uses less digits than its factorization.

545444455123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257649821.

The product of its digits is 3840000, while the sum is 46.

Adding to 545444455123 its reverse (321554444545), we get a palindrome (866998899668).

The spelling of 545444455123 in words is "five hundred forty-five billion, four hundred forty-four million, four hundred fifty-five thousand, one hundred twenty-three".