127713015653543 has 2 divisors, whose sum is σ = 127713015653544. Its totient is φ = 127713015653542.

The previous prime is 127713015653521. The next prime is 127713015653579. The reversal of 127713015653543 is 345356510317721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127713015653543 - 2⁸ = 127713015653287 is a prime.

It is a super-2 number, since 2×127713015653543² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127713015653143) 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, 63856507826771 + 63856507826772.

It is an arithmetic number, because the mean of its divisors is an integer number (63856507826772).

Almost surely, 2^{127713015653543} is an apocalyptic number.

127713015653543 is a deficient number, since it is larger than the sum of its proper divisors (1).

127713015653543 is an equidigital number, since it uses as much as digits as its factorization.

127713015653543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 127713015653543 in words is "one hundred twenty-seven trillion, seven hundred thirteen billion, fifteen million, six hundred fifty-three thousand, five hundred forty-three".