6542405011 has 4 divisors (see below), whose sum is σ = 6542689432. Its totient is φ = 6542120592.

The previous prime is 6542405003. The next prime is 6542405021. The reversal of 6542405011 is 1105042456.

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 6542405011 - 2³ = 6542405003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6542405021) 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, 104346 + ... + 154831.

It is an arithmetic number, because the mean of its divisors is an integer number (1635672358).

Almost surely, 2^6542405011 is an apocalyptic number.

6542405011 is a deficient number, since it is larger than the sum of its proper divisors (284421).

6542405011 is a wasteful number, since it uses less digits than its factorization.

6542405011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284420.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 6542405011 is about 80885.1346725713. The cubic root of 6542405011 is about 1870.3051739642.

Adding to 6542405011 its reverse (1105042456), we get a palindrome (7647447467).

The spelling of 6542405011 in words is "six billion, five hundred forty-two million, four hundred five thousand, eleven".