6321940543 has 2 divisors, whose sum is σ = 6321940544. Its totient is φ = 6321940542.

The previous prime is 6321940481. The next prime is 6321940561. The reversal of 6321940543 is 3450491236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6321940543 - 2¹⁷ = 6321809471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6321940643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160970271 + 3160970272.

It is an arithmetic number, because the mean of its divisors is an integer number (3160970272).

Almost surely, 2^6321940543 is an apocalyptic number.

6321940543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321940543 is an equidigital number, since it uses as much as digits as its factorization.

6321940543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 6321940543 is about 79510.6316350210. The cubic root of 6321940543 is about 1849.0563039903.

The spelling of 6321940543 in words is "six billion, three hundred twenty-one million, nine hundred forty thousand, five hundred forty-three".