6973255981 has 2 divisors, whose sum is σ = 6973255982. Its totient is φ = 6973255980.

The previous prime is 6973255963. The next prime is 6973256009. The reversal of 6973255981 is 1895523796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5797451881 + 1175804100 = 76141^2 + 34290^2 .

It is a cyclic number.

It is not a de Polignac number, because 6973255981 - 2⁷ = 6973255853 is a prime.

It is a super-2 number, since 2×6973255981² = 97252597953104544722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6973255901) 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, 3486627990 + 3486627991.

It is an arithmetic number, because the mean of its divisors is an integer number (3486627991).

Almost surely, 2^6973255981 is an apocalyptic number.

It is an amenable number.

6973255981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6973255981 is an equidigital number, since it uses as much as digits as its factorization.

6973255981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 55.

The square root of 6973255981 is about 83506.0236210538. The cubic root of 6973255981 is about 1910.4919085159.

The spelling of 6973255981 in words is "six billion, nine hundred seventy-three million, two hundred fifty-five thousand, nine hundred eighty-one".