12485739883109 has 2 divisors, whose sum is σ = 12485739883110. Its totient is φ = 12485739883108.

The previous prime is 12485739883103. The next prime is 12485739883129. The reversal of 12485739883109 is 90138893758421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9197693872900 + 3288046010209 = 3032770^2 + 1813297^2 .

It is a cyclic number.

It is not a de Polignac number, because 12485739883109 - 2⁴ = 12485739883093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12485739883103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6242869941554 + 6242869941555.

It is an arithmetic number, because the mean of its divisors is an integer number (6242869941555).

Almost surely, 2^{12485739883109} is an apocalyptic number.

It is an amenable number.

12485739883109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12485739883109 is an equidigital number, since it uses as much as digits as its factorization.

12485739883109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 12485739883109 in words is "twelve trillion, four hundred eighty-five billion, seven hundred thirty-nine million, eight hundred eighty-three thousand, one hundred nine".