6541436043 has 16 divisors (see below), whose sum is σ = 9741236640. Its totient is φ = 4338358272.

The previous prime is 6541436021. The next prime is 6541436063. The reversal of 6541436043 is 3406341456.

6541436043 is a `hidden beast` number, since 6 + 5 + 4 + 1 + 43 + 604 + 3 = 666.

It is not a de Polignac number, because 6541436043 - 2¹² = 6541431947 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6541435989 and 6541436007.

It is not an unprimeable number, because it can be changed into a prime (6541436063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622446 + ... + 632867.

It is an arithmetic number, because the mean of its divisors is an integer number (608827290).

Almost surely, 2^6541436043 is an apocalyptic number.

6541436043 is a deficient number, since it is larger than the sum of its proper divisors (3199800597).

6541436043 is a wasteful number, since it uses less digits than its factorization.

6541436043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255515 (or 1255509 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 6541436043 is about 80879.1446727770. The cubic root of 6541436043 is about 1870.2128350696.

Adding to 6541436043 its reverse (3406341456), we get a palindrome (9947777499).

The spelling of 6541436043 in words is "six billion, five hundred forty-one million, four hundred thirty-six thousand, forty-three".