1279057613129 has 2 divisors, whose sum is σ = 1279057613130. Its totient is φ = 1279057613128.

The previous prime is 1279057613111. The next prime is 1279057613131. The reversal of 1279057613129 is 9213167509721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730751425600 + 548306187529 = 854840^2 + 740477^2 .

It is a cyclic number.

It is not a de Polignac number, because 1279057613129 - 2⁸ = 1279057612873 is a prime.

Together with 1279057613131, 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 (1279057613429) 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, 639528806564 + 639528806565.

It is an arithmetic number, because the mean of its divisors is an integer number (639528806565).

Almost surely, 2^{1279057613129} is an apocalyptic number.

It is an amenable number.

1279057613129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279057613129 is an equidigital number, since it uses as much as digits as its factorization.

1279057613129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1428840, while the sum is 53.

The spelling of 1279057613129 in words is "one trillion, two hundred seventy-nine billion, fifty-seven million, six hundred thirteen thousand, one hundred twenty-nine".