6321971983 has 2 divisors, whose sum is σ = 6321971984. Its totient is φ = 6321971982.

The previous prime is 6321971923. The next prime is 6321972029. The reversal of 6321971983 is 3891791236.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6321971983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6321971923) 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, 3160985991 + 3160985992.

It is an arithmetic number, because the mean of its divisors is an integer number (3160985992).

Almost surely, 2^6321971983 is an apocalyptic number.

6321971983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321971983 is an equidigital number, since it uses as much as digits as its factorization.

6321971983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 6321971983 is about 79510.8293441843. The cubic root of 6321971983 is about 1849.0593692007.

The spelling of 6321971983 in words is "six billion, three hundred twenty-one million, nine hundred seventy-one thousand, nine hundred eighty-three".