12516484349 has 2 divisors, whose sum is σ = 12516484350. Its totient is φ = 12516484348.

The previous prime is 12516484291. The next prime is 12516484363. The reversal of 12516484349 is 94348461521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9928727449 + 2587756900 = 99643^2 + 50870^2 .

It is an emirp because it is prime and its reverse (94348461521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12516484349 - 2⁸ = 12516484093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12516484649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258242174 + 6258242175.

It is an arithmetic number, because the mean of its divisors is an integer number (6258242175).

Almost surely, 2^12516484349 is an apocalyptic number.

It is an amenable number.

12516484349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12516484349 is an equidigital number, since it uses as much as digits as its factorization.

12516484349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The spelling of 12516484349 in words is "twelve billion, five hundred sixteen million, four hundred eighty-four thousand, three hundred forty-nine".