12679627469 has 2 divisors, whose sum is σ = 12679627470. Its totient is φ = 12679627468.

The previous prime is 12679627439. The next prime is 12679627481. The reversal of 12679627469 is 96472697621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9423555625 + 3256071844 = 97075^2 + 57062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12679627469 is a prime.

It is a super-2 number, since 2×12679627469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12679627439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6339813734 + 6339813735.

It is an arithmetic number, because the mean of its divisors is an integer number (6339813735).

Almost surely, 2^12679627469 is an apocalyptic number.

It is an amenable number.

12679627469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679627469 is an equidigital number, since it uses as much as digits as its factorization.

12679627469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13716864, while the sum is 59.

The spelling of 12679627469 in words is "twelve billion, six hundred seventy-nine million, six hundred twenty-seven thousand, four hundred sixty-nine".