6411275366449 has 2 divisors, whose sum is σ = 6411275366450. Its totient is φ = 6411275366448.

The previous prime is 6411275366429. The next prime is 6411275366491. The reversal of 6411275366449 is 9446635721146.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5581609426849 + 829665939600 = 2362543^2 + 910860^2 .

It is a cyclic number.

It is not a de Polignac number, because 6411275366449 - 2¹¹ = 6411275364401 is a prime.

It is a super-2 number, since 2×6411275366449² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6411275366393 and 6411275366402.

It is not a weakly prime, because it can be changed into another prime (6411275366429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205637683224 + 3205637683225.

It is an arithmetic number, because the mean of its divisors is an integer number (3205637683225).

Almost surely, 2^{6411275366449} is an apocalyptic number.

It is an amenable number.

6411275366449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6411275366449 is an equidigital number, since it uses as much as digits as its factorization.

6411275366449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 58.

The spelling of 6411275366449 in words is "six trillion, four hundred eleven billion, two hundred seventy-five million, three hundred sixty-six thousand, four hundred forty-nine".