1260871690229 has 2 divisors, whose sum is σ = 1260871690230. Its totient is φ = 1260871690228.

The previous prime is 1260871690219. The next prime is 1260871690231. The reversal of 1260871690229 is 9220961780621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254456000625 + 6415689604 = 1120025^2 + 80098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1260871690229 is a prime.

Together with 1260871690231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1260871690219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630435845114 + 630435845115.

It is an arithmetic number, because the mean of its divisors is an integer number (630435845115).

Almost surely, 2^{1260871690229} is an apocalyptic number.

It is an amenable number.

1260871690229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260871690229 is an equidigital number, since it uses as much as digits as its factorization.

1260871690229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 1260871690229 in words is "one trillion, two hundred sixty billion, eight hundred seventy-one million, six hundred ninety thousand, two hundred twenty-nine".