1216741626239 has 2 divisors, whose sum is σ = 1216741626240. Its totient is φ = 1216741626238.

The previous prime is 1216741626143. The next prime is 1216741626421. The reversal of 1216741626239 is 9326261476121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1216741626239 - 2⁴⁰ = 117229998463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1216741626839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608370813119 + 608370813120.

It is an arithmetic number, because the mean of its divisors is an integer number (608370813120).

Almost surely, 2^{1216741626239} is an apocalyptic number.

1216741626239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216741626239 is an equidigital number, since it uses as much as digits as its factorization.

1216741626239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The spelling of 1216741626239 in words is "one trillion, two hundred sixteen billion, seven hundred forty-one million, six hundred twenty-six thousand, two hundred thirty-nine".