545434686434545 has 16 divisors (see below), whose sum is σ = 673473772395792. Its totient is φ = 423876012601600.

The previous prime is 545434686434531. The next prime is 545434686434581.

545434686434545 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 82104928625329 + 463329757809216 = 9061177^2 + 21525096^2 .

It is not a de Polignac number, because 545434686434545 - 2³⁵ = 545400326696177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10189300462 + ... + 10189353991.

It is an arithmetic number, because the mean of its divisors is an integer number (42092110774737).

Almost surely, 2^{545434686434545} is an apocalyptic number.

It is an amenable number.

545434686434545 is a deficient number, since it is larger than the sum of its proper divisors (128039085961247).

545434686434545 is a wasteful number, since it uses less digits than its factorization.

545434686434545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20378654612.

The product of its digits is 6635520000, while the sum is 70.

The spelling of 545434686434545 in words is "five hundred forty-five trillion, four hundred thirty-four billion, six hundred eighty-six million, four hundred thirty-four thousand, five hundred forty-five".