12679627481 has 2 divisors, whose sum is σ = 12679627482. Its totient is φ = 12679627480.

The previous prime is 12679627469. The next prime is 12679627483. The reversal of 12679627481 is 18472697621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12530787481 + 148840000 = 111941^2 + 12200^2 .

It is a cyclic number.

It is not a de Polignac number, because 12679627481 - 2⁶ = 12679627417 is a prime.

It is a super-2 number, since 2×12679627481² (a number of 21 digits) contains 22 as substring.

Together with 12679627483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12679627483) 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, 6339813740 + 6339813741.

It is an arithmetic number, because the mean of its divisors is an integer number (6339813741).

Almost surely, 2^12679627481 is an apocalyptic number.

It is an amenable number.

12679627481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12679627481 is an equidigital number, since it uses as much as digits as its factorization.

12679627481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The spelling of 12679627481 in words is "twelve billion, six hundred seventy-nine million, six hundred twenty-seven thousand, four hundred eighty-one".