12978360413 has 2 divisors, whose sum is σ = 12978360414. Its totient is φ = 12978360412.

The previous prime is 12978360403. The next prime is 12978360431. The reversal of 12978360413 is 31406387921.

Together with next prime (12978360431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9856121284 + 3122239129 = 99278^2 + 55877^2 .

It is a cyclic number.

It is not a de Polignac number, because 12978360413 - 2¹² = 12978356317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12978360403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6489180206 + 6489180207.

It is an arithmetic number, because the mean of its divisors is an integer number (6489180207).

Almost surely, 2^12978360413 is an apocalyptic number.

It is an amenable number.

12978360413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12978360413 is an equidigital number, since it uses as much as digits as its factorization.

12978360413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 12978360413 in words is "twelve billion, nine hundred seventy-eight million, three hundred sixty thousand, four hundred thirteen".