12347108981479 has 2 divisors, whose sum is σ = 12347108981480. Its totient is φ = 12347108981478.

The previous prime is 12347108981461. The next prime is 12347108981497. The reversal of 12347108981479 is 97418980174321.

Together with next prime (12347108981497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (12347108981461) and next prime (12347108981497).

It is a cyclic number.

It is not a de Polignac number, because 12347108981479 - 2⁵ = 12347108981447 is a prime.

It is a super-2 number, since 2×12347108981479² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12347108981479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12347108381479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6173554490739 + 6173554490740.

It is an arithmetic number, because the mean of its divisors is an integer number (6173554490740).

Almost surely, 2^{12347108981479} is an apocalyptic number.

12347108981479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12347108981479 is an equidigital number, since it uses as much as digits as its factorization.

12347108981479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 12347108981479 in words is "twelve trillion, three hundred forty-seven billion, one hundred eight million, nine hundred eighty-one thousand, four hundred seventy-nine".