1276550849341 has 2 divisors, whose sum is σ = 1276550849342. Its totient is φ = 1276550849340.

The previous prime is 1276550849339. The next prime is 1276550849347. The reversal of 1276550849341 is 1439480556721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 692631740025 + 583919109316 = 832245^2 + 764146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276550849341 - 2¹ = 1276550849339 is a prime.

Together with 1276550849339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276550849347) 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, 638275424670 + 638275424671.

It is an arithmetic number, because the mean of its divisors is an integer number (638275424671).

It is a 1-persistent number, because it is pandigital, but 2⋅1276550849341 = 2553101698682 is not.

Almost surely, 2^{1276550849341} is an apocalyptic number.

It is an amenable number.

1276550849341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276550849341 is an equidigital number, since it uses as much as digits as its factorization.

1276550849341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 1276550849341 in words is "one trillion, two hundred seventy-six billion, five hundred fifty million, eight hundred forty-nine thousand, three hundred forty-one".