6321689971 has 2 divisors, whose sum is σ = 6321689972. Its totient is φ = 6321689970.

The previous prime is 6321689963. The next prime is 6321689981. The reversal of 6321689971 is 1799861236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6321689971 - 2³ = 6321689963 is a prime.

It is not a weakly prime, because it can be changed into another prime (6321689981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160844985 + 3160844986.

It is an arithmetic number, because the mean of its divisors is an integer number (3160844986).

Almost surely, 2^6321689971 is an apocalyptic number.

6321689971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321689971 is an equidigital number, since it uses as much as digits as its factorization.

6321689971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The square root of 6321689971 is about 79509.0559056011. The cubic root of 6321689971 is about 1849.0318743681.

The spelling of 6321689971 in words is "six billion, three hundred twenty-one million, six hundred eighty-nine thousand, nine hundred seventy-one".