127144770670817 has 2 divisors, whose sum is σ = 127144770670818. Its totient is φ = 127144770670816.

The previous prime is 127144770670807. The next prime is 127144770670823. The reversal of 127144770670817 is 718076077441721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127144770670801 + 16 = 11275849^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 127144770670817 - 2¹⁰ = 127144770669793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127144770670817.

It is not a weakly prime, because it can be changed into another prime (127144770670807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63572385335408 + 63572385335409.

It is an arithmetic number, because the mean of its divisors is an integer number (63572385335409).

Almost surely, 2^{127144770670817} is an apocalyptic number.

It is an amenable number.

127144770670817 is a deficient number, since it is larger than the sum of its proper divisors (1).

127144770670817 is an equidigital number, since it uses as much as digits as its factorization.

127144770670817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25815552, while the sum is 62.

The spelling of 127144770670817 in words is "one hundred twenty-seven trillion, one hundred forty-four billion, seven hundred seventy million, six hundred seventy thousand, eight hundred seventeen".