8543505047 has 32 divisors (see below), whose sum is σ = 11150327808. Its totient is φ = 6351660000.

The previous prime is 8543505031. The next prime is 8543505049. The reversal of 8543505047 is 7405053458.

It is not a de Polignac number, because 8543505047 - 2⁴ = 8543505031 is a prime.

It is a super-2 number, since 2×8543505047² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8543504995 and 8543505013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8543505049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144272 + ... + 194682.

It is an arithmetic number, because the mean of its divisors is an integer number (348447744).

Almost surely, 2^8543505047 is an apocalyptic number.

8543505047 is a deficient number, since it is larger than the sum of its proper divisors (2606822761).

8543505047 is a wasteful number, since it uses less digits than its factorization.

8543505047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50531.

The product of its (nonzero) digits is 336000, while the sum is 41.

The square root of 8543505047 is about 92431.0826886713. The cubic root of 8543505047 is about 2044.3034431636.

The spelling of 8543505047 in words is "eight billion, five hundred forty-three million, five hundred five thousand, forty-seven".