8505465543 has 12 divisors (see below), whose sum is σ = 12286828008. Its totient is φ = 5669777040.

The previous prime is 8505465509. The next prime is 8505465557. The reversal of 8505465543 is 3455645058.

8505465543 is a `hidden beast` number, since 8 + 50 + 5 + 46 + 554 + 3 = 666.

It is not a de Polignac number, because 8505465543 - 2¹⁴ = 8505449159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505465583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72853 + ... + 149393.

It is an arithmetic number, because the mean of its divisors is an integer number (1023902334).

Almost surely, 2^8505465543 is an apocalyptic number.

8505465543 is a deficient number, since it is larger than the sum of its proper divisors (3781362465).

8505465543 is a wasteful number, since it uses less digits than its factorization.

8505465543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88894 (or 88891 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The square root of 8505465543 is about 92225.0808782513. The cubic root of 8505465543 is about 2041.2648780507.

The spelling of 8505465543 in words is "eight billion, five hundred five million, four hundred sixty-five thousand, five hundred forty-three".