127284881365997 has 2 divisors, whose sum is σ = 127284881365998. Its totient is φ = 127284881365996.

The previous prime is 127284881365981. The next prime is 127284881366011. The reversal of 127284881365997 is 799563188482721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118601922983401 + 8682958382596 = 10890451^2 + 2946686^2 .

It is a cyclic number.

It is not a de Polignac number, because 127284881365997 - 2⁴ = 127284881365981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127284881365097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63642440682998 + 63642440682999.

It is an arithmetic number, because the mean of its divisors is an integer number (63642440682999).

Almost surely, 2^{127284881365997} is an apocalyptic number.

It is an amenable number.

127284881365997 is a deficient number, since it is larger than the sum of its proper divisors (1).

127284881365997 is an equidigital number, since it uses as much as digits as its factorization.

127284881365997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2926264320, while the sum is 80.

The spelling of 127284881365997 in words is "one hundred twenty-seven trillion, two hundred eighty-four billion, eight hundred eighty-one million, three hundred sixty-five thousand, nine hundred ninety-seven".