6979321901 has 2 divisors, whose sum is σ = 6979321902. Its totient is φ = 6979321900.

The previous prime is 6979321847. The next prime is 6979321991. The reversal of 6979321901 is 1091239796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3558241801 + 3421080100 = 59651^2 + 58490^2 .

It is a cyclic number.

It is not a de Polignac number, because 6979321901 - 2⁶ = 6979321837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6979321991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489660950 + 3489660951.

It is an arithmetic number, because the mean of its divisors is an integer number (3489660951).

Almost surely, 2^6979321901 is an apocalyptic number.

It is an amenable number.

6979321901 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979321901 is an equidigital number, since it uses as much as digits as its factorization.

6979321901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 6979321901 is about 83542.3359800287. The cubic root of 6979321901 is about 1911.0457163977.

The spelling of 6979321901 in words is "six billion, nine hundred seventy-nine million, three hundred twenty-one thousand, nine hundred one".