6541143412 has 12 divisors (see below), whose sum is σ = 11447843680. Its totient is φ = 3270330936.

The previous prime is 6541143379. The next prime is 6541143419. The reversal of 6541143412 is 2143411456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541143419) 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, 10039 + ... + 114817.

Almost surely, 2^6541143412 is an apocalyptic number.

It is an amenable number.

6541143412 is a deficient number, since it is larger than the sum of its proper divisors (4906700268).

6541143412 is a wasteful number, since it uses less digits than its factorization.

6541143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120390 (or 120388 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 6541143412 is about 80877.3355891501. The cubic root of 6541143412 is about 1870.1849466768.

Adding to 6541143412 its reverse (2143411456), we get a palindrome (8684554868).

The spelling of 6541143412 in words is "six billion, five hundred forty-one million, one hundred forty-three thousand, four hundred twelve".