545844909448545 has 64 divisors (see below), whose sum is σ = 1008008641414656. Its totient is φ = 247056091084800.

The previous prime is 545844909448541. The next prime is 545844909448571.

545844909448545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545844909448545 - 2² = 545844909448541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545844909448541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1500393807 + ... + 1500757563.

It is an arithmetic number, because the mean of its divisors is an integer number (15750135022104).

Almost surely, 2^{545844909448545} is an apocalyptic number.

It is an amenable number.

545844909448545 is a deficient number, since it is larger than the sum of its proper divisors (462163731966111).

545844909448545 is a wasteful number, since it uses less digits than its factorization.

545844909448545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505370.

The product of its (nonzero) digits is 13271040000, while the sum is 78.

The spelling of 545844909448545 in words is "five hundred forty-five trillion, eight hundred forty-four billion, nine hundred nine million, four hundred forty-eight thousand, five hundred forty-five".