8543495405 has 4 divisors (see below), whose sum is σ = 10252194492. Its totient is φ = 6834796320.

The previous prime is 8543495353. The next prime is 8543495423. The reversal of 8543495405 is 5045943458.

8543495405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1773167881 + 6770327524 = 42109^2 + 82282^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8543495405 is a prime.

It is a super-2 number, since 2×8543495405² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8543495405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854349536 + ... + 854349545.

It is an arithmetic number, because the mean of its divisors is an integer number (2563048623).

Almost surely, 2^8543495405 is an apocalyptic number.

It is an amenable number.

8543495405 is a deficient number, since it is larger than the sum of its proper divisors (1708699087).

8543495405 is a wasteful number, since it uses less digits than its factorization.

8543495405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708699086.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The square root of 8543495405 is about 92431.0305308775. The cubic root of 8543495405 is about 2044.3026741123.

The spelling of 8543495405 in words is "eight billion, five hundred forty-three million, four hundred ninety-five thousand, four hundred five".