1126881261791 has 2 divisors, whose sum is σ = 1126881261792. Its totient is φ = 1126881261790.

The previous prime is 1126881261761. The next prime is 1126881261817. The reversal of 1126881261791 is 1971621886211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1126881261791 - 2¹⁴ = 1126881245407 is a prime.

It is a super-2 number, since 2×1126881261791² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126881261761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563440630895 + 563440630896.

It is an arithmetic number, because the mean of its divisors is an integer number (563440630896).

Almost surely, 2^{1126881261791} is an apocalyptic number.

1126881261791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126881261791 is an equidigital number, since it uses as much as digits as its factorization.

1126881261791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 53.

The spelling of 1126881261791 in words is "one trillion, one hundred twenty-six billion, eight hundred eighty-one million, two hundred sixty-one thousand, seven hundred ninety-one".