11346643439 has 2 divisors, whose sum is σ = 11346643440. Its totient is φ = 11346643438.

The previous prime is 11346643417. The next prime is 11346643493. The reversal of 11346643439 is 93434664311.

It is a happy number.

Together with next prime (11346643493) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11346643439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11346643439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11346643499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5673321719 + 5673321720.

It is an arithmetic number, because the mean of its divisors is an integer number (5673321720).

Almost surely, 2^11346643439 is an apocalyptic number.

11346643439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11346643439 is an equidigital number, since it uses as much as digits as its factorization.

11346643439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 44.

The spelling of 11346643439 in words is "eleven billion, three hundred forty-six million, six hundred forty-three thousand, four hundred thirty-nine".