545444450451 has 64 divisors (see below), whose sum is σ = 823814720640. Its totient is φ = 356606115840.

The previous prime is 545444450429. The next prime is 545444450477. The reversal of 545444450451 is 154054444545.

545444450451 is a `hidden beast` number, since 5 + 4 + 54 + 4 + 44 + 504 + 51 = 666.

It is not a de Polignac number, because 545444450451 - 2¹⁰ = 545444449427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545444450397 and 545444450406.

It is not an unprimeable number, because it can be changed into a prime (545444450651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321416035 + ... + 321417731.

It is an arithmetic number, because the mean of its divisors is an integer number (12872105010).

Almost surely, 2^545444450451 is an apocalyptic number.

545444450451 is a deficient number, since it is larger than the sum of its proper divisors (278370270189).

545444450451 is a wasteful number, since it uses less digits than its factorization.

545444450451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 45.

Adding to 545444450451 its reverse (154054444545), we get a palindrome (699498894996).

The spelling of 545444450451 in words is "five hundred forty-five billion, four hundred forty-four million, four hundred fifty thousand, four hundred fifty-one".