6397043782973 has 2 divisors, whose sum is σ = 6397043782974. Its totient is φ = 6397043782972.

The previous prime is 6397043782951. The next prime is 6397043783003. The reversal of 6397043782973 is 3792873407936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4129601108164 + 2267442674809 = 2032142^2 + 1505803^2 .

It is a cyclic number.

It is not a de Polignac number, because 6397043782973 - 2¹⁰ = 6397043781949 is a prime.

It is a super-2 number, since 2×6397043782973² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6397043782903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198521891486 + 3198521891487.

It is an arithmetic number, because the mean of its divisors is an integer number (3198521891487).

Almost surely, 2^{6397043782973} is an apocalyptic number.

It is an amenable number.

6397043782973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6397043782973 is an equidigital number, since it uses as much as digits as its factorization.

6397043782973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288054144, while the sum is 68.

The spelling of 6397043782973 in words is "six trillion, three hundred ninety-seven billion, forty-three million, seven hundred eighty-two thousand, nine hundred seventy-three".