6543454067 has 4 divisors (see below), whose sum is σ = 6551963880. Its totient is φ = 6534944256.

The previous prime is 6543454009. The next prime is 6543454097. The reversal of 6543454067 is 7604543456.

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 6543454067 - 2¹⁰ = 6543453043 is a prime.

It is a super-2 number, since 2×6543454067² = 85633582253877680978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6543454097) 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, 4253753 + ... + 4255290.

It is an arithmetic number, because the mean of its divisors is an integer number (1637990970).

Almost surely, 2^6543454067 is an apocalyptic number.

6543454067 is a deficient number, since it is larger than the sum of its proper divisors (8509813).

6543454067 is an equidigital number, since it uses as much as digits as its factorization.

6543454067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509812.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The square root of 6543454067 is about 80891.6192630609. The cubic root of 6543454067 is about 1870.4051346565.

The spelling of 6543454067 in words is "six billion, five hundred forty-three million, four hundred fifty-four thousand, sixty-seven".