127856068693 has 2 divisors, whose sum is σ = 127856068694. Its totient is φ = 127856068692.

The previous prime is 127856068679. The next prime is 127856068727. The reversal of 127856068693 is 396860658721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106499753649 + 21356315044 = 326343^2 + 146138^2 .

It is a cyclic number.

It is not a de Polignac number, because 127856068693 - 2²⁹ = 127319197781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127856068633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63928034346 + 63928034347.

It is an arithmetic number, because the mean of its divisors is an integer number (63928034347).

Almost surely, 2^127856068693 is an apocalyptic number.

It is an amenable number.

127856068693 is a deficient number, since it is larger than the sum of its proper divisors (1).

127856068693 is an equidigital number, since it uses as much as digits as its factorization.

127856068693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 127856068693 in words is "one hundred twenty-seven billion, eight hundred fifty-six million, sixty-eight thousand, six hundred ninety-three".