8499440543 has 4 divisors (see below), whose sum is σ = 9272116968. Its totient is φ = 7726764120.

The previous prime is 8499440519. The next prime is 8499440627. The reversal of 8499440543 is 3450449948.

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

It is a cyclic number.

It is not a de Polignac number, because 8499440543 - 2¹⁸ = 8499178399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8499440491 and 8499440500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8499443543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386338196 + ... + 386338217.

It is an arithmetic number, because the mean of its divisors is an integer number (2318029242).

Almost surely, 2^8499440543 is an apocalyptic number.

8499440543 is a deficient number, since it is larger than the sum of its proper divisors (772676425).

8499440543 is a wasteful number, since it uses less digits than its factorization.

8499440543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772676424.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 8499440543 is about 92192.4104414241. The cubic root of 8499440543 is about 2040.7827752603.

The spelling of 8499440543 in words is "eight billion, four hundred ninety-nine million, four hundred forty thousand, five hundred forty-three".