1226793889019 has 2 divisors, whose sum is σ = 1226793889020. Its totient is φ = 1226793889018.

The previous prime is 1226793888913. The next prime is 1226793889031. The reversal of 1226793889019 is 9109883976221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226793889019 - 2²⁴ = 1226777111803 is a prime.

It is a super-2 number, since 2×1226793889019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1226793889099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613396944509 + 613396944510.

It is an arithmetic number, because the mean of its divisors is an integer number (613396944510).

Almost surely, 2^{1226793889019} is an apocalyptic number.

1226793889019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226793889019 is an equidigital number, since it uses as much as digits as its factorization.

1226793889019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 1226793889019 in words is "one trillion, two hundred twenty-six billion, seven hundred ninety-three million, eight hundred eighty-nine thousand, nineteen".