4006534543 has 4 divisors (see below), whose sum is σ = 4370764968. Its totient is φ = 3642304120.

The previous prime is 4006534537. The next prime is 4006534561. The reversal of 4006534543 is 3454356004.

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 4006534543 - 2⁹ = 4006534031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4006534499 and 4006534508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006534513) 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, 182115196 + ... + 182115217.

It is an arithmetic number, because the mean of its divisors is an integer number (1092691242).

Almost surely, 2^4006534543 is an apocalyptic number.

4006534543 is a deficient number, since it is larger than the sum of its proper divisors (364230425).

4006534543 is a wasteful number, since it uses less digits than its factorization.

4006534543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364230424.

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 4006534543 is about 63297.1922205085. The cubic root of 4006534543 is about 1588.2649933863.

The spelling of 4006534543 in words is "four billion, six million, five hundred thirty-four thousand, five hundred forty-three".