12784510369 has 2 divisors, whose sum is σ = 12784510370. Its totient is φ = 12784510368.

The previous prime is 12784510339. The next prime is 12784510399. The reversal of 12784510369 is 96301548721.

It is a balanced prime because it is at equal distance from previous prime (12784510339) and next prime (12784510399).

It can be written as a sum of positive squares in only one way, i.e., 12184848225 + 599662144 = 110385^2 + 24488^2 .

It is a cyclic number.

It is not a de Polignac number, because 12784510369 - 2¹³ = 12784502177 is a prime.

It is a super-2 number, since 2×12784510369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12784510309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6392255184 + 6392255185.

It is an arithmetic number, because the mean of its divisors is an integer number (6392255185).

It is a 1-persistent number, because it is pandigital, but 2⋅12784510369 = 25569020738 is not.

Almost surely, 2^12784510369 is an apocalyptic number.

It is an amenable number.

12784510369 is a deficient number, since it is larger than the sum of its proper divisors (1).

12784510369 is an equidigital number, since it uses as much as digits as its factorization.

12784510369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 12784510369 in words is "twelve billion, seven hundred eighty-four million, five hundred ten thousand, three hundred sixty-nine".