6443120541 has 32 divisors (see below), whose sum is σ = 10365522048. Its totient is φ = 3507114240.

The previous prime is 6443120503. The next prime is 6443120543. The reversal of 6443120541 is 1450213446.

6443120541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6443120541 - 2³⁰ = 5369378717 is a prime.

It is a super-2 number, since 2×6443120541² = 83027604611712265362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6443120499 and 6443120508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443120543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187086 + ... + 218831.

It is an arithmetic number, because the mean of its divisors is an integer number (323922564).

Almost surely, 2^6443120541 is an apocalyptic number.

It is an amenable number.

6443120541 is a deficient number, since it is larger than the sum of its proper divisors (3922401507).

6443120541 is a wasteful number, since it uses less digits than its factorization.

6443120541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405981.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 6443120541 is about 80269.0509536521. The cubic root of 6443120541 is about 1860.7959499521.

Adding to 6443120541 its reverse (1450213446), we get a palindrome (7893333987).

The spelling of 6443120541 in words is "six billion, four hundred forty-three million, one hundred twenty thousand, five hundred forty-one".