127648765843129 has 2 divisors, whose sum is σ = 127648765843130. Its totient is φ = 127648765843128.

The previous prime is 127648765843121. The next prime is 127648765843213. The reversal of 127648765843129 is 921348567846721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89012658361104 + 38636107482025 = 9434652^2 + 6215795^2 .

It is a cyclic number.

It is not a de Polignac number, because 127648765843129 - 2³ = 127648765843121 is a prime.

It is not a weakly prime, because it can be changed into another prime (127648765843121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63824382921564 + 63824382921565.

It is an arithmetic number, because the mean of its divisors is an integer number (63824382921565).

Almost surely, 2^{127648765843129} is an apocalyptic number.

It is an amenable number.

127648765843129 is a deficient number, since it is larger than the sum of its proper divisors (1).

127648765843129 is an equidigital number, since it uses as much as digits as its factorization.

127648765843129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 975421440, while the sum is 73.

The spelling of 127648765843129 in words is "one hundred twenty-seven trillion, six hundred forty-eight billion, seven hundred sixty-five million, eight hundred forty-three thousand, one hundred twenty-nine".