127864135718243 has 2 divisors, whose sum is σ = 127864135718244. Its totient is φ = 127864135718242.

The previous prime is 127864135718219. The next prime is 127864135718281. The reversal of 127864135718243 is 342817531468721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127864135718243 - 2²⁶ = 127864068609379 is a prime.

It is not a weakly prime, because it can be changed into another prime (127864135718213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63932067859121 + 63932067859122.

It is an arithmetic number, because the mean of its divisors is an integer number (63932067859122).

Almost surely, 2^{127864135718243} is an apocalyptic number.

127864135718243 is a deficient number, since it is larger than the sum of its proper divisors (1).

127864135718243 is an equidigital number, since it uses as much as digits as its factorization.

127864135718243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54190080, while the sum is 62.

The spelling of 127864135718243 in words is "one hundred twenty-seven trillion, eight hundred sixty-four billion, one hundred thirty-five million, seven hundred eighteen thousand, two hundred forty-three".