6542881343 has 2 divisors, whose sum is σ = 6542881344. Its totient is φ = 6542881342.

The previous prime is 6542881337. The next prime is 6542881379. The reversal of 6542881343 is 3431882456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6542881343 - 2¹⁰ = 6542880319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6542881294 and 6542881303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6542881243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271440671 + 3271440672.

It is an arithmetic number, because the mean of its divisors is an integer number (3271440672).

Almost surely, 2^6542881343 is an apocalyptic number.

6542881343 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542881343 is an equidigital number, since it uses as much as digits as its factorization.

6542881343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 44.

The square root of 6542881343 is about 80888.0791155285. The cubic root of 6542881343 is about 1870.3505632149.

The spelling of 6542881343 in words is "six billion, five hundred forty-two million, eight hundred eighty-one thousand, three hundred forty-three".