6542100443 has 2 divisors, whose sum is σ = 6542100444. Its totient is φ = 6542100442.

The previous prime is 6542100391. The next prime is 6542100449. The reversal of 6542100443 is 3440012456.

6542100443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6542100443 - 2¹² = 6542096347 is a prime.

It is not a weakly prime, because it can be changed into another prime (6542100449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271050221 + 3271050222.

It is an arithmetic number, because the mean of its divisors is an integer number (3271050222).

Almost surely, 2^6542100443 is an apocalyptic number.

6542100443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542100443 is an equidigital number, since it uses as much as digits as its factorization.

6542100443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 6542100443 is about 80883.2519314104. The cubic root of 6542100443 is about 1870.2761507968.

Adding to 6542100443 its reverse (3440012456), we get a palindrome (9982112899).

The spelling of 6542100443 in words is "six billion, five hundred forty-two million, one hundred thousand, four hundred forty-three".