6411981497827 has 2 divisors, whose sum is σ = 6411981497828. Its totient is φ = 6411981497826.

The previous prime is 6411981497749. The next prime is 6411981497833. The reversal of 6411981497827 is 7287941891146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6411981497827 - 2¹¹ = 6411981495779 is a prime.

It is a super-3 number, since 3×6411981497827³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6411981494827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205990748913 + 3205990748914.

It is an arithmetic number, because the mean of its divisors is an integer number (3205990748914).

Almost surely, 2^{6411981497827} is an apocalyptic number.

6411981497827 is a deficient number, since it is larger than the sum of its proper divisors (1).

6411981497827 is an equidigital number, since it uses as much as digits as its factorization.

6411981497827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48771072, while the sum is 67.

The spelling of 6411981497827 in words is "six trillion, four hundred eleven billion, nine hundred eighty-one million, four hundred ninety-seven thousand, eight hundred twenty-seven".